HL7 Europe Imaging Study Report
0.1.0-ballot - ci-build 150

HL7 Europe Imaging Study Report, published by HL7 Europe. This guide is not an authorized publication; it is the continuous build for version 0.1.0-ballot built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/oijauregui/ehdsimaging/tree/master and changes regularly. See the Directory of published versions

Extension: ext_R5_ImagingSelection - Detailed Descriptions

Draft as of 2025-06-03

Definitions for the ext-R5-ImagingSelection extension.

Guidance on how to interpret the contents of this table can be foundhere

0. Extension
Definition

A selection of DICOM SOP instances and/or frames within a single Study and Series. This might include additional specifics such as an image region, an Observation UID or a Segmentation Number, allowing linkage to an Observation Resource or transferring this information along with the ImagingStudy Resource.


Optional Extension Element - found in all resources.

ShortA selection of DICOM SOP instances and/or framesOptional Extensions Element
Control0..*
This element is affected by the following invariants: ele-1
Is Modifierfalse
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
2. Extension.extension
Definition

May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

ShortAdditional content defined by implementations
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Control20..*
TypeExtension
Is Modifierfalse
Summaryfalse
Alternate Namesextensions, user content
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
SlicingThis element introduces a set of slices on Extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
  • value @ url
  • 4. Extension.extension:status
    Slice Namestatus
    Definition

    The current state of the ImagingSelection resource. This is not the status of any ImagingStudy, ServiceRequest, or Task resources associated with the ImagingSelection.

    Shortavailable | entered-in-error | unknownAdditional content defined by implementations
    Comments

    There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

    Control10..1*
    TypeExtension
    Is Modifiertruefalse because This element is labeled as a modifier because it is a status element that contains status entered-in-error which means that the resource should not be treated as valid
    Summaryfalse
    Alternate Namesextensions, user content
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
    ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
    6. Extension.extension:status.url
    Definition

    Source of the definition for the extension code - a logical name or a URL.

    Shortidentifies the meaning of the extension
    Comments

    The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.

    Control1..1
    Typeuri
    Is Modifierfalse
    XML FormatIn the XML format, this property is represented as an attribute.
    Summaryfalse
    Fixed Valuestatus
    8. Extension.extension:status.value[x]
    Definition

    The current state of the ImagingSelection resource. This is not the status of any ImagingStudy, ServiceRequest, or Task resources associated with the ImagingSelection.


    Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).

    Shortavailable | entered-in-error | unknownValue of extension
    Control0..1
    BindingThe codes SHALL be taken from For codes, see Cross-version VS for R5.ImagingSelectionStatus for use in FHIR R4
    (required to http://hl7.org/fhir/uv/xver/5.0/ValueSet/R5-imagingselection-status-for-R4)

    The status of the ImagingSelection.

    Typecode, date, Meta, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, Identifier, Coding, SampledData, id, positiveInt, Distance, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, decimal, CodeableConcept, ParameterDefinition, dateTime, string, Contributor, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, Reference, TriggerDefinition, Quantity, uri, url, Annotation, ContactDetail, boolean, Expression, Signature, unsignedInt, time
    [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
    Is Modifierfalse
    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
    Summaryfalse
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    10. Extension.extension:issued
    Slice Nameissued
    Definition

    The date and time this imaging selection was created.

    ShortDate / Time when this imaging selection was createdAdditional content defined by implementations
    Comments

    There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

    Control0..1*
    TypeExtension
    Is Modifierfalse
    Summaryfalse
    Alternate Namesextensions, user content
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
    ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
    12. Extension.extension:issued.url
    Definition

    Source of the definition for the extension code - a logical name or a URL.

    Shortidentifies the meaning of the extension
    Comments

    The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.

    Control1..1
    Typeuri
    Is Modifierfalse
    XML FormatIn the XML format, this property is represented as an attribute.
    Summaryfalse
    Fixed Valueissued
    14. Extension.extension:issued.value[x]
    Definition

    The date and time this imaging selection was created.


    Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).

    ShortDate / Time when this imaging selection was createdValue of extension
    Control0..1
    Typeinstant, date, Meta, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, Identifier, Coding, SampledData, id, positiveInt, Distance, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, decimal, CodeableConcept, ParameterDefinition, dateTime, code, string, Contributor, oid, ContactPoint, HumanName, Money, markdown, Ratio, Age, Reference, TriggerDefinition, Quantity, uri, url, Annotation, ContactDetail, boolean, Expression, Signature, unsignedInt, time
    [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
    Is Modifierfalse
    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
    Summaryfalse
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    16. Extension.extension:performer
    Slice Nameperformer
    Definition

    Selector of the instances – human or machine.

    ShortSelector of the instances (human or machine)Additional content defined by implementations
    Comments

    There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

    Control0..*
    TypeExtension
    Is Modifierfalse
    Summaryfalse
    Alternate Namesextensions, user content
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
    ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
    18. Extension.extension:performer.extension
    Definition

    May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

    ShortAdditional content defined by implementations
    Comments

    There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

    Control0..*
    TypeExtension
    Is Modifierfalse
    Summaryfalse
    Alternate Namesextensions, user content
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
    ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
    SlicingThis element introduces a set of slices on Extension.extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
    • value @ url
    • 20. Extension.extension:performer.extension:function
      Slice Namefunction
      Definition

      Distinguishes the type of involvement of the performer.

      ShortType of performerAdditional content defined by implementations
      Comments

      There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

      Control0..1*
      TypeExtension
      Is Modifierfalse
      Summaryfalse
      Alternate Namesextensions, user content
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
      ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
      22. Extension.extension:performer.extension:function.url
      Definition

      Source of the definition for the extension code - a logical name or a URL.

      Shortidentifies the meaning of the extension
      Comments

      The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.

      Control1..1
      Typeuri
      Is Modifierfalse
      XML FormatIn the XML format, this property is represented as an attribute.
      Summaryfalse
      Fixed Valuefunction
      24. Extension.extension:performer.extension:function.value[x]
      Definition

      Distinguishes the type of involvement of the performer.


      Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).

      ShortType of performerValue of extension
      Control0..1
      BindingUnless not suitable, these codes SHALL be taken from For codes, see ImagingStudySeriesPerformerFunction
      (extensible to http://hl7.org/fhir/ValueSet/series-performer-function)

      The type of involvement of the performer.

      TypeCodeableConcept, date, Meta, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, Identifier, Coding, SampledData, id, positiveInt, Distance, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, decimal, ParameterDefinition, dateTime, code, string, Contributor, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, Reference, TriggerDefinition, Quantity, uri, url, Annotation, ContactDetail, boolean, Expression, Signature, unsignedInt, time
      [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
      Is Modifierfalse
      Summaryfalse
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      26. Extension.extension:performer.extension:actor
      Slice Nameactor
      Definition

      Author – human or machine.

      ShortAuthor (human or machine)Additional content defined by implementations
      Comments

      There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

      Control0..1*
      TypeExtension
      Is Modifierfalse
      Summaryfalse
      Alternate Namesextensions, user content
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
      ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
      28. Extension.extension:performer.extension:actor.url
      Definition

      Source of the definition for the extension code - a logical name or a URL.

      Shortidentifies the meaning of the extension
      Comments

      The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.

      Control1..1
      Typeuri
      Is Modifierfalse
      XML FormatIn the XML format, this property is represented as an attribute.
      Summaryfalse
      Fixed Valueactor
      30. Extension.extension:performer.extension:actor.value[x]
      Definition

      Author – human or machine.


      Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).

      ShortAuthor (human or machine)Value of extension
      Control0..1
      TypeReference(Practitioner, PractitionerRole, Device, Organization, CareTeam, Patient, RelatedPerson, HealthcareService), date, Meta, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, Identifier, Coding, SampledData, id, positiveInt, Distance, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, decimal, CodeableConcept, ParameterDefinition, dateTime, code, string, Contributor, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, TriggerDefinition, Quantity, uri, url, Annotation, ContactDetail, boolean, Expression, Signature, unsignedInt, time
      [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
      Is Modifierfalse
      Summaryfalse
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      32. Extension.extension:performer.url
      Definition

      Source of the definition for the extension code - a logical name or a URL.

      Shortidentifies the meaning of the extension
      Comments

      The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.

      Control1..1
      Typeuri
      Is Modifierfalse
      XML FormatIn the XML format, this property is represented as an attribute.
      Summaryfalse
      Fixed Valueperformer
      34. Extension.extension:basedOn
      Slice NamebasedOn
      Definition

      A list of the diagnostic requests that resulted in this imaging selection being performed.

      ShortAssociated requestAdditional content defined by implementations
      Comments

      There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

      Control0..*
      TypeExtension
      Is Modifierfalse
      Summaryfalse
      Alternate Namesextensions, user content
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
      ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
      36. Extension.extension:basedOn.url
      Definition

      Source of the definition for the extension code - a logical name or a URL.

      Shortidentifies the meaning of the extension
      Comments

      The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.

      Control1..1
      Typeuri
      Is Modifierfalse
      XML FormatIn the XML format, this property is represented as an attribute.
      Summaryfalse
      Fixed ValuebasedOn
      38. Extension.extension:basedOn.value[x]
      Definition

      A list of the diagnostic requests that resulted in this imaging selection being performed.


      Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).

      ShortAssociated requestValue of extension
      Control0..1
      TypeReference(CarePlan, ServiceRequest, Appointment, AppointmentResponse, Task), date, Meta, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, Identifier, Coding, SampledData, id, positiveInt, Distance, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, decimal, CodeableConcept, ParameterDefinition, dateTime, code, string, Contributor, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, TriggerDefinition, Quantity, uri, url, Annotation, ContactDetail, boolean, Expression, Signature, unsignedInt, time
      [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
      Is Modifierfalse
      Summaryfalse
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      40. Extension.extension:category
      Slice Namecategory
      Definition

      May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

      ShortClassifies the imaging selectionAdditional content defined by implementations
      Comments

      There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

      Control0..*
      TypeExtension
      Is Modifierfalse
      Summaryfalse
      Alternate Namesextensions, user content
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
      ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
      42. Extension.extension:category.url
      Definition

      Source of the definition for the extension code - a logical name or a URL.

      Shortidentifies the meaning of the extension
      Comments

      The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.

      Control1..1
      Typeuri
      Is Modifierfalse
      XML FormatIn the XML format, this property is represented as an attribute.
      Summaryfalse
      Fixed Valuecategory
      44. Extension.extension:category.value[x]
      Definition

      Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).


      Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).

      ShortClassifies the imaging selectionValue of extension
      Control0..1
      BindingFor example codes, see For codes, see KeyObjectSelectionDocumentTitle
      (example to http://dicom.nema.org/medical/dicom/current/output/chtml/part16/sect_CID_7010.html)

      Key Object Selection Document Title.

      TypeCodeableConcept, date, Meta, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, Identifier, Coding, SampledData, id, positiveInt, Distance, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, decimal, ParameterDefinition, dateTime, code, string, Contributor, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, Reference, TriggerDefinition, Quantity, uri, url, Annotation, ContactDetail, boolean, Expression, Signature, unsignedInt, time
      [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
      Is Modifierfalse
      Summaryfalse
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      46. Extension.extension:studyUid
      Slice NamestudyUid
      Definition

      The Study Instance UID for the DICOM Study from which the images were selected.

      ShortDICOM Study Instance UIDAdditional content defined by implementations
      Comments

      There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

      Control0..1*
      TypeExtension
      Is Modifierfalse
      Summaryfalse
      Alternate Namesextensions, user content
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
      ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
      48. Extension.extension:studyUid.url
      Definition

      Source of the definition for the extension code - a logical name or a URL.

      Shortidentifies the meaning of the extension
      Comments

      The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.

      Control1..1
      Typeuri
      Is Modifierfalse
      XML FormatIn the XML format, this property is represented as an attribute.
      Summaryfalse
      Fixed ValuestudyUid
      50. Extension.extension:studyUid.value[x]
      Definition

      The Study Instance UID for the DICOM Study from which the images were selected.


      Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).

      ShortDICOM Study Instance UIDValue of extension
      Control0..1
      Typeid, date, Meta, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, Identifier, Coding, SampledData, positiveInt, Distance, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, decimal, CodeableConcept, ParameterDefinition, dateTime, code, string, Contributor, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, Reference, TriggerDefinition, Quantity, uri, url, Annotation, ContactDetail, boolean, Expression, Signature, unsignedInt, time
      [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
      Is Modifierfalse
      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
      Summaryfalse
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      52. Extension.extension:derivedFrom
      Slice NamederivedFrom
      Definition

      The imaging study from which the imaging selection is made.

      ShortThe imaging study from which the imaging selection is derivedAdditional content defined by implementations
      Comments

      There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

      Control0..*
      TypeExtension
      Is Modifierfalse
      Summaryfalse
      Alternate Namesextensions, user content
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
      ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
      54. Extension.extension:derivedFrom.url
      Definition

      Source of the definition for the extension code - a logical name or a URL.

      Shortidentifies the meaning of the extension
      Comments

      The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.

      Control1..1
      Typeuri
      Is Modifierfalse
      XML FormatIn the XML format, this property is represented as an attribute.
      Summaryfalse
      Fixed ValuederivedFrom
      56. Extension.extension:derivedFrom.value[x]
      Definition

      The imaging study from which the imaging selection is made.


      Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).

      ShortThe imaging study from which the imaging selection is derivedValue of extension
      Control0..1
      TypeReference(ImagingStudy, DocumentReference), date, Meta, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, Identifier, Coding, SampledData, id, positiveInt, Distance, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, decimal, CodeableConcept, ParameterDefinition, dateTime, code, string, Contributor, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, TriggerDefinition, Quantity, uri, url, Annotation, ContactDetail, boolean, Expression, Signature, unsignedInt, time
      [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
      Is Modifierfalse
      Summaryfalse
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      58. Extension.extension:endpoint
      Slice Nameendpoint
      Definition

      The network service providing retrieval access to the selected images, frames, etc. See implementation notes for information about using DICOM endpoints.

      ShortThe network service providing retrieval for the images referenced in the imaging selectionAdditional content defined by implementations
      Comments

      There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

      Control0..*
      TypeExtension
      Is Modifierfalse
      Summaryfalse
      Alternate Namesextensions, user content
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
      ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
      60. Extension.extension:endpoint.url
      Definition

      Source of the definition for the extension code - a logical name or a URL.

      Shortidentifies the meaning of the extension
      Comments

      The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.

      Control1..1
      Typeuri
      Is Modifierfalse
      XML FormatIn the XML format, this property is represented as an attribute.
      Summaryfalse
      Fixed Valueendpoint
      62. Extension.extension:endpoint.value[x]
      Definition

      The network service providing retrieval access to the selected images, frames, etc. See implementation notes for information about using DICOM endpoints.


      Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).

      ShortThe network service providing retrieval for the images referenced in the imaging selectionValue of extension
      Control0..1
      TypeReference(Endpoint), date, Meta, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, Identifier, Coding, SampledData, id, positiveInt, Distance, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, decimal, CodeableConcept, ParameterDefinition, dateTime, code, string, Contributor, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, TriggerDefinition, Quantity, uri, url, Annotation, ContactDetail, boolean, Expression, Signature, unsignedInt, time
      [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
      Is Modifierfalse
      Summaryfalse
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      64. Extension.extension:seriesUid
      Slice NameseriesUid
      Definition

      The Series Instance UID for the DICOM Series from which the images were selected.

      ShortDICOM Series Instance UIDAdditional content defined by implementations
      Comments

      There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

      Control0..1*
      TypeExtension
      Is Modifierfalse
      Summaryfalse
      Alternate Namesextensions, user content
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
      ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
      66. Extension.extension:seriesUid.url
      Definition

      Source of the definition for the extension code - a logical name or a URL.

      Shortidentifies the meaning of the extension
      Comments

      The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.

      Control1..1
      Typeuri
      Is Modifierfalse
      XML FormatIn the XML format, this property is represented as an attribute.
      Summaryfalse
      Fixed ValueseriesUid
      68. Extension.extension:seriesUid.value[x]
      Definition

      The Series Instance UID for the DICOM Series from which the images were selected.


      Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).

      ShortDICOM Series Instance UIDValue of extension
      Control0..1
      Typeid, date, Meta, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, Identifier, Coding, SampledData, positiveInt, Distance, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, decimal, CodeableConcept, ParameterDefinition, dateTime, code, string, Contributor, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, Reference, TriggerDefinition, Quantity, uri, url, Annotation, ContactDetail, boolean, Expression, Signature, unsignedInt, time
      [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
      Is Modifierfalse
      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
      Summaryfalse
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      70. Extension.extension:seriesNumber
      Slice NameseriesNumber
      Definition

      The Series Number for the DICOM Series from which the images were selected.

      ShortDICOM Series NumberAdditional content defined by implementations
      Comments

      There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

      Control0..1*
      TypeExtension
      Is Modifierfalse
      Summaryfalse
      Alternate Namesextensions, user content
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
      ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
      72. Extension.extension:seriesNumber.url
      Definition

      Source of the definition for the extension code - a logical name or a URL.

      Shortidentifies the meaning of the extension
      Comments

      The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.

      Control1..1
      Typeuri
      Is Modifierfalse
      XML FormatIn the XML format, this property is represented as an attribute.
      Summaryfalse
      Fixed ValueseriesNumber
      74. Extension.extension:seriesNumber.value[x]
      Definition

      The Series Number for the DICOM Series from which the images were selected.


      Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).

      ShortDICOM Series NumberValue of extension
      Control0..1
      TypeunsignedInt, date, Meta, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, Identifier, Coding, SampledData, id, positiveInt, Distance, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, decimal, CodeableConcept, ParameterDefinition, dateTime, code, string, Contributor, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, Reference, TriggerDefinition, Quantity, uri, url, Annotation, ContactDetail, boolean, Expression, Signature, time
      [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
      Is Modifierfalse
      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
      Summaryfalse
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      76. Extension.extension:frameOfReferenceUid
      Slice NameframeOfReferenceUid
      Definition

      The Frame of Reference UID identifying the coordinate system that conveys spatial and/or temporal information for the selected images or frames.

      ShortThe Frame of Reference UID for the selected imagesAdditional content defined by implementations
      Comments

      There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

      Control0..1*
      TypeExtension
      Is Modifierfalse
      Summaryfalse
      Alternate Namesextensions, user content
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
      ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
      78. Extension.extension:frameOfReferenceUid.url
      Definition

      Source of the definition for the extension code - a logical name or a URL.

      Shortidentifies the meaning of the extension
      Comments

      The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.

      Control1..1
      Typeuri
      Is Modifierfalse
      XML FormatIn the XML format, this property is represented as an attribute.
      Summaryfalse
      Fixed ValueframeOfReferenceUid
      80. Extension.extension:frameOfReferenceUid.value[x]
      Definition

      The Frame of Reference UID identifying the coordinate system that conveys spatial and/or temporal information for the selected images or frames.


      Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).

      ShortThe Frame of Reference UID for the selected imagesValue of extension
      Control0..1
      Typeid, date, Meta, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, Identifier, Coding, SampledData, positiveInt, Distance, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, decimal, CodeableConcept, ParameterDefinition, dateTime, code, string, Contributor, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, Reference, TriggerDefinition, Quantity, uri, url, Annotation, ContactDetail, boolean, Expression, Signature, unsignedInt, time
      [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
      Is Modifierfalse
      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
      Summaryfalse
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      82. Extension.extension:bodySite
      Slice NamebodySite
      Definition

      The anatomic structures examined. See DICOM Part 16 Annex L (http://dicom.nema.org/medical/dicom/current/output/chtml/part16/chapter_L.html) for DICOM to SNOMED-CT mappings.

      ShortBody part examinedAdditional content defined by implementations
      Comments

      There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

      Control0..1*
      TypeExtension
      Is Modifierfalse
      Summaryfalse
      Alternate Namesextensions, user content
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
      ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
      84. Extension.extension:bodySite.extension:_datatype
      Slice Name_datatype
      Definition

      Data type name for ImagingSelection.bodySite from FHIR R5

      ShortData type name for ImagingSelection.bodySite from FHIR R5
      Comments

      There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

      Control0..1
      TypeExtension(Datatype) (Extension Type: string)
      Is Modifierfalse
      Summaryfalse
      Alternate Namesextensions, user content
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
      ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
      86. Extension.extension:bodySite.extension:_datatype.url
      Definition

      Source of the definition for the extension code - a logical name or a URL.

      Shortidentifies the meaning of the extension
      Comments

      The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.

      Control1..1
      Typeuri
      Is Modifierfalse
      XML FormatIn the XML format, this property is represented as an attribute.
      Summaryfalse
      Fixed Valuehttp://hl7.org/fhir/StructureDefinition/_datatype
      88. Extension.extension:bodySite.extension:_datatype.value[x]
      Definition

      Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).


      Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).

      ShortValue of extension
      Comments

      Must be: CodeableReference

      Control10..1
      Typestring, date, Meta, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, Identifier, Coding, SampledData, id, positiveInt, Distance, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, decimal, CodeableConcept, ParameterDefinition, dateTime, code, Contributor, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, Reference, TriggerDefinition, Quantity, uri, url, Annotation, ContactDetail, boolean, Expression, Signature, unsignedInt, time
      [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
      Is Modifierfalse
      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
      Summaryfalse
      Fixed ValueCodeableReference
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      90. Extension.extension:bodySite.extension:concept
      Slice Nameconcept
      Definition

      A reference to a concept - e.g. the information is identified by its general class to the degree of precision found in the terminology.

      ShortReference to a concept (by class)Additional content defined by implementations
      Comments

      There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

      Control0..1*
      TypeExtension
      Is Modifierfalse
      Summaryfalse
      Alternate Namesextensions, user content
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
      ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
      92. Extension.extension:bodySite.extension:concept.url
      Definition

      Source of the definition for the extension code - a logical name or a URL.

      Shortidentifies the meaning of the extension
      Comments

      The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.

      Control1..1
      Typeuri
      Is Modifierfalse
      XML FormatIn the XML format, this property is represented as an attribute.
      Summaryfalse
      Fixed Valueconcept
      94. Extension.extension:bodySite.extension:concept.value[x]
      Definition

      A reference to a concept - e.g. the information is identified by its general class to the degree of precision found in the terminology.


      Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).

      ShortReference to a concept (by class)Value of extension
      Control0..1
      TypeCodeableConcept, date, Meta, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, Identifier, Coding, SampledData, id, positiveInt, Distance, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, decimal, ParameterDefinition, dateTime, code, string, Contributor, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, Reference, TriggerDefinition, Quantity, uri, url, Annotation, ContactDetail, boolean, Expression, Signature, unsignedInt, time
      [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
      Is Modifierfalse
      Summaryfalse
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      96. Extension.extension:bodySite.extension:reference
      Slice Namereference
      Definition

      A reference to a resource the provides exact details about the information being referenced.

      ShortReference to a resource (by instance)Additional content defined by implementations
      Comments

      There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

      Control0..1*
      TypeExtension
      Is Modifierfalse
      Summaryfalse
      Alternate Namesextensions, user content
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
      ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
      98. Extension.extension:bodySite.extension:reference.url
      Definition

      Source of the definition for the extension code - a logical name or a URL.

      Shortidentifies the meaning of the extension
      Comments

      The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.

      Control1..1
      Typeuri
      Is Modifierfalse
      XML FormatIn the XML format, this property is represented as an attribute.
      Summaryfalse
      Fixed Valuereference
      100. Extension.extension:bodySite.extension:reference.value[x]
      Definition

      A reference to a resource the provides exact details about the information being referenced.


      Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).

      ShortReference to a resource (by instance)Value of extension
      Control0..1
      TypeReference, date, Meta, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, Identifier, Coding, SampledData, id, positiveInt, Distance, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, decimal, CodeableConcept, ParameterDefinition, dateTime, code, string, Contributor, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, TriggerDefinition, Quantity, uri, url, Annotation, ContactDetail, boolean, Expression, Signature, unsignedInt, time
      [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
      Is Modifierfalse
      Summaryfalse
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      102. Extension.extension:bodySite.url
      Definition

      Source of the definition for the extension code - a logical name or a URL.

      Shortidentifies the meaning of the extension
      Comments

      The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.

      Control1..1
      Typeuri
      Is Modifierfalse
      XML FormatIn the XML format, this property is represented as an attribute.
      Summaryfalse
      Fixed ValuebodySite
      104. Extension.extension:focus
      Slice Namefocus
      Definition

      The actual focus of an observation when it is not the patient of record representing something or someone associated with the patient such as a spouse, parent, fetus, or donor. For example, fetus observations in a mother's record. The focus of an observation could also be an existing condition, an intervention, the subject's diet, another observation of the subject, or a body structure such as tumor or implanted device. An example use case would be using the Observation resource to capture whether the mother is trained to change her child's tracheostomy tube. In this example, the child is the patient of record and the mother is the focus.

      ShortRelated resource that is the focus for the imaging selectionAdditional content defined by implementations
      Comments

      There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

      Control0..*
      TypeExtension
      Is Modifierfalse
      Summaryfalse
      Alternate Namesextensions, user content
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
      ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
      106. Extension.extension:focus.url
      Definition

      Source of the definition for the extension code - a logical name or a URL.

      Shortidentifies the meaning of the extension
      Comments

      The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.

      Control1..1
      Typeuri
      Is Modifierfalse
      XML FormatIn the XML format, this property is represented as an attribute.
      Summaryfalse
      Fixed Valuefocus
      108. Extension.extension:focus.value[x]
      Definition

      The actual focus of an observation when it is not the patient of record representing something or someone associated with the patient such as a spouse, parent, fetus, or donor. For example, fetus observations in a mother's record. The focus of an observation could also be an existing condition, an intervention, the subject's diet, another observation of the subject, or a body structure such as tumor or implanted device. An example use case would be using the Observation resource to capture whether the mother is trained to change her child's tracheostomy tube. In this example, the child is the patient of record and the mother is the focus.


      Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).

      ShortRelated resource that is the focus for the imaging selectionValue of extension
      Control0..1
      TypeReference(http://hl7.org/fhir/StructureDefinition/ImagingSelection), date, Meta, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, Identifier, Coding, SampledData, id, positiveInt, Distance, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, decimal, CodeableConcept, ParameterDefinition, dateTime, code, string, Contributor, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, TriggerDefinition, Quantity, uri, url, Annotation, ContactDetail, boolean, Expression, Signature, unsignedInt, time
      [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
      Is Modifierfalse
      Summaryfalse
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      110. Extension.extension:instance
      Slice Nameinstance
      Definition

      Each imaging selection includes one or more selected DICOM SOP instances.

      ShortThe selected instancesAdditional content defined by implementations
      Comments

      There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

      Control0..*
      TypeExtension
      Is Modifierfalse
      Summaryfalse
      Alternate Namesextensions, user content
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
      ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
      112. Extension.extension:instance.extension
      Definition

      May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

      ShortAdditional content defined by implementations
      Comments

      There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

      Control10..*
      TypeExtension
      Is Modifierfalse
      Summaryfalse
      Alternate Namesextensions, user content
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
      ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
      SlicingThis element introduces a set of slices on Extension.extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
      • value @ url
      • 114. Extension.extension:instance.extension:uid
        Slice Nameuid
        Definition

        The SOP Instance UID for the selected DICOM instance.

        ShortDICOM SOP Instance UIDAdditional content defined by implementations
        Comments

        There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

        Control10..1*
        TypeExtension
        Is Modifierfalse
        Summaryfalse
        Alternate Namesextensions, user content
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
        ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
        116. Extension.extension:instance.extension:uid.url
        Definition

        Source of the definition for the extension code - a logical name or a URL.

        Shortidentifies the meaning of the extension
        Comments

        The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.

        Control1..1
        Typeuri
        Is Modifierfalse
        XML FormatIn the XML format, this property is represented as an attribute.
        Summaryfalse
        Fixed Valueuid
        118. Extension.extension:instance.extension:uid.value[x]
        Definition

        The SOP Instance UID for the selected DICOM instance.


        Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).

        ShortDICOM SOP Instance UIDValue of extension
        Control0..1
        Typeid, date, Meta, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, Identifier, Coding, SampledData, positiveInt, Distance, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, decimal, CodeableConcept, ParameterDefinition, dateTime, code, string, Contributor, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, Reference, TriggerDefinition, Quantity, uri, url, Annotation, ContactDetail, boolean, Expression, Signature, unsignedInt, time
        [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
        Is Modifierfalse
        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
        Summaryfalse
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        120. Extension.extension:instance.extension:number
        Slice Namenumber
        Definition

        The Instance Number for the selected DICOM instance.

        ShortDICOM Instance NumberAdditional content defined by implementations
        Comments

        There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

        Control0..1*
        TypeExtension
        Is Modifierfalse
        Summaryfalse
        Alternate Namesextensions, user content
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
        ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
        122. Extension.extension:instance.extension:number.url
        Definition

        Source of the definition for the extension code - a logical name or a URL.

        Shortidentifies the meaning of the extension
        Comments

        The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.

        Control1..1
        Typeuri
        Is Modifierfalse
        XML FormatIn the XML format, this property is represented as an attribute.
        Summaryfalse
        Fixed Valuenumber
        124. Extension.extension:instance.extension:number.value[x]
        Definition

        The Instance Number for the selected DICOM instance.


        Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).

        ShortDICOM Instance NumberValue of extension
        Control0..1
        TypeunsignedInt, date, Meta, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, Identifier, Coding, SampledData, id, positiveInt, Distance, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, decimal, CodeableConcept, ParameterDefinition, dateTime, code, string, Contributor, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, Reference, TriggerDefinition, Quantity, uri, url, Annotation, ContactDetail, boolean, Expression, Signature, time
        [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
        Is Modifierfalse
        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
        Summaryfalse
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        126. Extension.extension:instance.extension:sopClass
        Slice NamesopClass
        Definition

        The SOP Class UID for the selected DICOM instance.

        ShortDICOM SOP Class UIDAdditional content defined by implementations
        Comments

        There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

        Control0..1*
        TypeExtension
        Is Modifierfalse
        Summaryfalse
        Alternate Namesextensions, user content
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
        ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
        128. Extension.extension:instance.extension:sopClass.url
        Definition

        Source of the definition for the extension code - a logical name or a URL.

        Shortidentifies the meaning of the extension
        Comments

        The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.

        Control1..1
        Typeuri
        Is Modifierfalse
        XML FormatIn the XML format, this property is represented as an attribute.
        Summaryfalse
        Fixed ValuesopClass
        130. Extension.extension:instance.extension:sopClass.value[x]
        Definition

        The SOP Class UID for the selected DICOM instance.


        Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).

        ShortDICOM SOP Class UIDValue of extension
        Control0..1
        BindingUnless not suitable, these codes SHALL be taken from For codes, see http://dicom.nema.org/medical/dicom/current/output/chtml/part04/sect_B.5.html#table_B.5-1
        (extensible to http://dicom.nema.org/medical/dicom/current/output/chtml/part04/sect_B.5.html#table_B.5-1)

        DICOM SOP Classes.

        TypeCoding, date, Meta, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, Identifier, SampledData, id, positiveInt, Distance, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, decimal, CodeableConcept, ParameterDefinition, dateTime, code, string, Contributor, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, Reference, TriggerDefinition, Quantity, uri, url, Annotation, ContactDetail, boolean, Expression, Signature, unsignedInt, time
        [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
        Is Modifierfalse
        Summaryfalse
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        132. Extension.extension:instance.extension:subset
        Slice Namesubset
        Definition

        Selected subset of the SOP Instance. The content and format of the subset item is determined by the SOP Class of the selected instance. May be one of: - A list of frame numbers selected from a multiframe SOP Instance. - A list of Content Item Observation UID values selected from a DICOM SR or other structured document SOP Instance. - A list of segment numbers selected from a segmentation SOP Instance. - A list of Region of Interest (ROI) numbers selected from a radiotherapy structure set SOP Instance.

        ShortThe selected subset of the SOP InstanceAdditional content defined by implementations
        Comments

        There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

        Control0..*
        TypeExtension
        Is Modifierfalse
        Summaryfalse
        Alternate Namesextensions, user content
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
        ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
        134. Extension.extension:instance.extension:subset.url
        Definition

        Source of the definition for the extension code - a logical name or a URL.

        Shortidentifies the meaning of the extension
        Comments

        The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.

        Control1..1
        Typeuri
        Is Modifierfalse
        XML FormatIn the XML format, this property is represented as an attribute.
        Summaryfalse
        Fixed Valuesubset
        136. Extension.extension:instance.extension:subset.value[x]
        Definition

        Selected subset of the SOP Instance. The content and format of the subset item is determined by the SOP Class of the selected instance. May be one of: - A list of frame numbers selected from a multiframe SOP Instance. - A list of Content Item Observation UID values selected from a DICOM SR or other structured document SOP Instance. - A list of segment numbers selected from a segmentation SOP Instance. - A list of Region of Interest (ROI) numbers selected from a radiotherapy structure set SOP Instance.


        Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).

        ShortThe selected subset of the SOP InstanceValue of extension
        Control0..1
        Typestring, date, Meta, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, Identifier, Coding, SampledData, id, positiveInt, Distance, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, decimal, CodeableConcept, ParameterDefinition, dateTime, code, Contributor, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, Reference, TriggerDefinition, Quantity, uri, url, Annotation, ContactDetail, boolean, Expression, Signature, unsignedInt, time
        [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
        Is Modifierfalse
        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
        Summaryfalse
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        138. Extension.extension:instance.extension:imageRegion2D
        Slice NameimageRegion2D
        Definition

        Each imaging selection instance or frame list might includes an image region, specified by a region type and a set of 2D coordinates. If the parent imagingSelection.instance contains a subset element of type frame, the image region applies to all frames in the subset list.

        ShortA specific 2D region in a DICOM image / frameAdditional content defined by implementations
        Comments

        There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

        Control0..*
        TypeExtension
        Is Modifierfalse
        Summaryfalse
        Alternate Namesextensions, user content
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
        ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
        140. Extension.extension:instance.extension:imageRegion2D.extension
        Definition

        May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

        ShortAdditional content defined by implementations
        Comments

        There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

        Control20..*
        TypeExtension
        Is Modifierfalse
        Summaryfalse
        Alternate Namesextensions, user content
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
        ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
        SlicingThis element introduces a set of slices on Extension.extension.extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
        • value @ url
        • 142. Extension.extension:instance.extension:imageRegion2D.extension:regionType
          Slice NameregionType
          Definition

          Specifies the type of image region.

          Shortpoint | polyline | interpolated | circle | ellipseAdditional content defined by implementations
          Comments

          There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

          Control10..1*
          TypeExtension
          Is Modifierfalse
          Summaryfalse
          Alternate Namesextensions, user content
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          144. Extension.extension:instance.extension:imageRegion2D.extension:regionType.url
          Definition

          Source of the definition for the extension code - a logical name or a URL.

          Shortidentifies the meaning of the extension
          Comments

          The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.

          Control1..1
          Typeuri
          Is Modifierfalse
          XML FormatIn the XML format, this property is represented as an attribute.
          Summaryfalse
          Fixed ValueregionType
          146. Extension.extension:instance.extension:imageRegion2D.extension:regionType.value[x]
          Definition

          Specifies the type of image region.


          Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).

          Shortpoint | polyline | interpolated | circle | ellipseValue of extension
          Control0..1
          BindingThe codes SHALL be taken from For codes, see Cross-version VS for R5.ImagingSelection2DGraphicType for use in FHIR R4
          (required to http://hl7.org/fhir/uv/xver/5.0/ValueSet/R5-imagingselection-2dgraphictype-for-R4)

          The type of image region.

          Typecode, date, Meta, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, Identifier, Coding, SampledData, id, positiveInt, Distance, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, decimal, CodeableConcept, ParameterDefinition, dateTime, string, Contributor, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, Reference, TriggerDefinition, Quantity, uri, url, Annotation, ContactDetail, boolean, Expression, Signature, unsignedInt, time
          [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
          Is Modifierfalse
          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
          Summaryfalse
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          148. Extension.extension:instance.extension:imageRegion2D.extension:coordinate
          Slice Namecoordinate
          Definition

          The coordinates describing the image region. Encoded as a set of (column, row) pairs that denote positions in the selected image / frames specified with sub-pixel resolution. The origin at the TLHC of the TLHC pixel is 0.0\0.0, the BRHC of the TLHC pixel is 1.0\1.0, and the BRHC of the BRHC pixel is the number of columns\rows in the image / frames. The values must be within the range 0\0 to the number of columns\rows in the image / frames.

          ShortSpecifies the coordinates that define the image regionAdditional content defined by implementations
          Comments

          There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

          Control10..*
          TypeExtension
          Is Modifierfalse
          Summaryfalse
          Alternate Namesextensions, user content
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          150. Extension.extension:instance.extension:imageRegion2D.extension:coordinate.url
          Definition

          Source of the definition for the extension code - a logical name or a URL.

          Shortidentifies the meaning of the extension
          Comments

          The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.

          Control1..1
          Typeuri
          Is Modifierfalse
          XML FormatIn the XML format, this property is represented as an attribute.
          Summaryfalse
          Fixed Valuecoordinate
          152. Extension.extension:instance.extension:imageRegion2D.extension:coordinate.value[x]
          Definition

          The coordinates describing the image region. Encoded as a set of (column, row) pairs that denote positions in the selected image / frames specified with sub-pixel resolution. The origin at the TLHC of the TLHC pixel is 0.0\0.0, the BRHC of the TLHC pixel is 1.0\1.0, and the BRHC of the BRHC pixel is the number of columns\rows in the image / frames. The values must be within the range 0\0 to the number of columns\rows in the image / frames.


          Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).

          ShortSpecifies the coordinates that define the image regionValue of extension
          Control0..1
          Typedecimal, date, Meta, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, Identifier, Coding, SampledData, id, positiveInt, Distance, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, CodeableConcept, ParameterDefinition, dateTime, code, string, Contributor, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, Reference, TriggerDefinition, Quantity, uri, url, Annotation, ContactDetail, boolean, Expression, Signature, unsignedInt, time
          [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
          Is Modifierfalse
          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
          Summaryfalse
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          154. Extension.extension:instance.extension:imageRegion2D.url
          Definition

          Source of the definition for the extension code - a logical name or a URL.

          Shortidentifies the meaning of the extension
          Comments

          The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.

          Control1..1
          Typeuri
          Is Modifierfalse
          XML FormatIn the XML format, this property is represented as an attribute.
          Summaryfalse
          Fixed ValueimageRegion2D
          156. Extension.extension:instance.extension:imageRegion3D
          Slice NameimageRegion3D
          Definition

          Each imaging selection might includes a 3D image region, specified by a region type and a set of 3D coordinates.

          ShortA specific 3D region in a DICOM frame of referenceAdditional content defined by implementations
          Comments

          There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

          Control0..*
          TypeExtension
          Is Modifierfalse
          Summaryfalse
          Alternate Namesextensions, user content
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          158. Extension.extension:instance.extension:imageRegion3D.extension
          Definition

          May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

          ShortAdditional content defined by implementations
          Comments

          There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

          Control20..*
          TypeExtension
          Is Modifierfalse
          Summaryfalse
          Alternate Namesextensions, user content
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          SlicingThis element introduces a set of slices on Extension.extension.extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
          • value @ url
          • 160. Extension.extension:instance.extension:imageRegion3D.extension:regionType
            Slice NameregionType
            Definition

            Specifies the type of image region.

            Shortpoint | multipoint | polyline | polygon | ellipse | ellipsoidAdditional content defined by implementations
            Comments

            There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

            Control10..1*
            TypeExtension
            Is Modifierfalse
            Summaryfalse
            Alternate Namesextensions, user content
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
            ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
            162. Extension.extension:instance.extension:imageRegion3D.extension:regionType.url
            Definition

            Source of the definition for the extension code - a logical name or a URL.

            Shortidentifies the meaning of the extension
            Comments

            The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.

            Control1..1
            Typeuri
            Is Modifierfalse
            XML FormatIn the XML format, this property is represented as an attribute.
            Summaryfalse
            Fixed ValueregionType
            164. Extension.extension:instance.extension:imageRegion3D.extension:regionType.value[x]
            Definition

            Specifies the type of image region.


            Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).

            Shortpoint | multipoint | polyline | polygon | ellipse | ellipsoidValue of extension
            Control0..1
            BindingThe codes SHALL be taken from For codes, see Cross-version VS for R5.ImagingSelection3DGraphicType for use in FHIR R4
            (required to http://hl7.org/fhir/uv/xver/5.0/ValueSet/R5-imagingselection-3dgraphictype-for-R4)

            The type of image region.

            Typecode, date, Meta, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, Identifier, Coding, SampledData, id, positiveInt, Distance, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, decimal, CodeableConcept, ParameterDefinition, dateTime, string, Contributor, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, Reference, TriggerDefinition, Quantity, uri, url, Annotation, ContactDetail, boolean, Expression, Signature, unsignedInt, time
            [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
            Is Modifierfalse
            Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
            Summaryfalse
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            166. Extension.extension:instance.extension:imageRegion3D.extension:coordinate
            Slice Namecoordinate
            Definition

            The coordinates describing the image region. Encoded as an ordered set of (x,y,z) triplets (in mm and may be negative) that define a region of interest in the patient-relative Reference Coordinate System defined by ImagingSelection.frameOfReferenceUid element.

            ShortSpecifies the coordinates that define the image regionAdditional content defined by implementations
            Comments

            There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

            Control10..*
            TypeExtension
            Is Modifierfalse
            Summaryfalse
            Alternate Namesextensions, user content
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
            ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
            168. Extension.extension:instance.extension:imageRegion3D.extension:coordinate.url
            Definition

            Source of the definition for the extension code - a logical name or a URL.

            Shortidentifies the meaning of the extension
            Comments

            The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.

            Control1..1
            Typeuri
            Is Modifierfalse
            XML FormatIn the XML format, this property is represented as an attribute.
            Summaryfalse
            Fixed Valuecoordinate
            170. Extension.extension:instance.extension:imageRegion3D.extension:coordinate.value[x]
            Definition

            The coordinates describing the image region. Encoded as an ordered set of (x,y,z) triplets (in mm and may be negative) that define a region of interest in the patient-relative Reference Coordinate System defined by ImagingSelection.frameOfReferenceUid element.


            Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).

            ShortSpecifies the coordinates that define the image regionValue of extension
            Control0..1
            Typedecimal, date, Meta, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, Identifier, Coding, SampledData, id, positiveInt, Distance, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, CodeableConcept, ParameterDefinition, dateTime, code, string, Contributor, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, Reference, TriggerDefinition, Quantity, uri, url, Annotation, ContactDetail, boolean, Expression, Signature, unsignedInt, time
            [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
            Is Modifierfalse
            Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
            Summaryfalse
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            172. Extension.extension:instance.extension:imageRegion3D.url
            Definition

            Source of the definition for the extension code - a logical name or a URL.

            Shortidentifies the meaning of the extension
            Comments

            The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.

            Control1..1
            Typeuri
            Is Modifierfalse
            XML FormatIn the XML format, this property is represented as an attribute.
            Summaryfalse
            Fixed ValueimageRegion3D
            174. Extension.extension:instance.url
            Definition

            Source of the definition for the extension code - a logical name or a URL.

            Shortidentifies the meaning of the extension
            Comments

            The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.

            Control1..1
            Typeuri
            Is Modifierfalse
            XML FormatIn the XML format, this property is represented as an attribute.
            Summaryfalse
            Fixed Valueinstance
            176. Extension.url
            Definition

            Source of the definition for the extension code - a logical name or a URL.

            Shortidentifies the meaning of the extension
            Comments

            The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.

            Control1..1
            Typeuri
            Is Modifierfalse
            XML FormatIn the XML format, this property is represented as an attribute.
            Summaryfalse
            Fixed Valuehttp://hl7.org/fhir/5.0/StructureDefinition/extension-ImagingSelection

            Guidance on how to interpret the contents of this table can be foundhere

            0. Extension
            Definition

            A selection of DICOM SOP instances and/or frames within a single Study and Series. This might include additional specifics such as an image region, an Observation UID or a Segmentation Number, allowing linkage to an Observation Resource or transferring this information along with the ImagingStudy Resource.

            ShortA selection of DICOM SOP instances and/or frames
            Control0..*
            Is Modifierfalse
            2. Extension.extension
            Control2..*
            SlicingThis element introduces a set of slices on Extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
            • value @ url
            • 4. Extension.extension:status
              Slice Namestatus
              Definition

              The current state of the ImagingSelection resource. This is not the status of any ImagingStudy, ServiceRequest, or Task resources associated with the ImagingSelection.

              Shortavailable | entered-in-error | unknown
              Control1..1
              Is Modifiertrue because This element is labeled as a modifier because it is a status element that contains status entered-in-error which means that the resource should not be treated as valid
              6. Extension.extension:status.value[x]
              Definition

              The current state of the ImagingSelection resource. This is not the status of any ImagingStudy, ServiceRequest, or Task resources associated with the ImagingSelection.

              Shortavailable | entered-in-error | unknown
              BindingThe codes SHALL be taken from Cross-version VS for R5.ImagingSelectionStatus for use in FHIR R4
              (required to http://hl7.org/fhir/uv/xver/5.0/ValueSet/R5-imagingselection-status-for-R4)

              The status of the ImagingSelection.

              Typecode
              [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
              Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
              8. Extension.extension:issued
              Slice Nameissued
              Definition

              The date and time this imaging selection was created.

              ShortDate / Time when this imaging selection was created
              Control0..1
              Is Modifierfalse
              10. Extension.extension:issued.value[x]
              Definition

              The date and time this imaging selection was created.

              ShortDate / Time when this imaging selection was created
              Typeinstant
              [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
              Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
              12. Extension.extension:performer
              Slice Nameperformer
              Definition

              Selector of the instances – human or machine.

              ShortSelector of the instances (human or machine)
              Control0..*
              Is Modifierfalse
              14. Extension.extension:performer.extension
              Control0..*
              SlicingThis element introduces a set of slices on Extension.extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
              • value @ url
              • 16. Extension.extension:performer.extension:function
                Slice Namefunction
                Definition

                Distinguishes the type of involvement of the performer.

                ShortType of performer
                Control0..1
                Is Modifierfalse
                18. Extension.extension:performer.extension:function.value[x]
                Definition

                Distinguishes the type of involvement of the performer.

                ShortType of performer
                BindingUnless not suitable, these codes SHALL be taken from ImagingStudySeriesPerformerFunction
                (extensible to http://hl7.org/fhir/ValueSet/series-performer-function)

                The type of involvement of the performer.

                TypeCodeableConcept
                [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                20. Extension.extension:performer.extension:actor
                Slice Nameactor
                Definition

                Author – human or machine.

                ShortAuthor (human or machine)
                Control0..1
                Is Modifierfalse
                22. Extension.extension:performer.extension:actor.value[x]
                Definition

                Author – human or machine.

                ShortAuthor (human or machine)
                TypeReference(Practitioner, PractitionerRole, Device, Organization, CareTeam, Patient, RelatedPerson, HealthcareService)
                [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                24. Extension.extension:basedOn
                Slice NamebasedOn
                Definition

                A list of the diagnostic requests that resulted in this imaging selection being performed.

                ShortAssociated request
                Control0..*
                Is Modifierfalse
                26. Extension.extension:basedOn.value[x]
                Definition

                A list of the diagnostic requests that resulted in this imaging selection being performed.

                ShortAssociated request
                TypeReference(CarePlan, ServiceRequest, Appointment, AppointmentResponse, Task)
                [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                28. Extension.extension:category
                Slice Namecategory
                ShortClassifies the imaging selection
                Control0..*
                Is Modifierfalse
                30. Extension.extension:category.value[x]
                ShortClassifies the imaging selection
                BindingFor example codes, see KeyObjectSelectionDocumentTitle
                (example to http://dicom.nema.org/medical/dicom/current/output/chtml/part16/sect_CID_7010.html)

                Key Object Selection Document Title.

                TypeCodeableConcept
                [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                32. Extension.extension:studyUid
                Slice NamestudyUid
                Definition

                The Study Instance UID for the DICOM Study from which the images were selected.

                ShortDICOM Study Instance UID
                Control0..1
                Is Modifierfalse
                34. Extension.extension:studyUid.value[x]
                Definition

                The Study Instance UID for the DICOM Study from which the images were selected.

                ShortDICOM Study Instance UID
                Typeid
                [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                36. Extension.extension:derivedFrom
                Slice NamederivedFrom
                Definition

                The imaging study from which the imaging selection is made.

                ShortThe imaging study from which the imaging selection is derived
                Control0..*
                Is Modifierfalse
                38. Extension.extension:derivedFrom.value[x]
                Definition

                The imaging study from which the imaging selection is made.

                ShortThe imaging study from which the imaging selection is derived
                TypeReference(ImagingStudy, DocumentReference)
                [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                40. Extension.extension:endpoint
                Slice Nameendpoint
                Definition

                The network service providing retrieval access to the selected images, frames, etc. See implementation notes for information about using DICOM endpoints.

                ShortThe network service providing retrieval for the images referenced in the imaging selection
                Control0..*
                Is Modifierfalse
                42. Extension.extension:endpoint.value[x]
                Definition

                The network service providing retrieval access to the selected images, frames, etc. See implementation notes for information about using DICOM endpoints.

                ShortThe network service providing retrieval for the images referenced in the imaging selection
                TypeReference(Endpoint)
                [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                44. Extension.extension:seriesUid
                Slice NameseriesUid
                Definition

                The Series Instance UID for the DICOM Series from which the images were selected.

                ShortDICOM Series Instance UID
                Control0..1
                Is Modifierfalse
                46. Extension.extension:seriesUid.value[x]
                Definition

                The Series Instance UID for the DICOM Series from which the images were selected.

                ShortDICOM Series Instance UID
                Typeid
                [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                48. Extension.extension:seriesNumber
                Slice NameseriesNumber
                Definition

                The Series Number for the DICOM Series from which the images were selected.

                ShortDICOM Series Number
                Control0..1
                Is Modifierfalse
                50. Extension.extension:seriesNumber.value[x]
                Definition

                The Series Number for the DICOM Series from which the images were selected.

                ShortDICOM Series Number
                TypeunsignedInt
                [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                52. Extension.extension:frameOfReferenceUid
                Slice NameframeOfReferenceUid
                Definition

                The Frame of Reference UID identifying the coordinate system that conveys spatial and/or temporal information for the selected images or frames.

                ShortThe Frame of Reference UID for the selected images
                Control0..1
                Is Modifierfalse
                54. Extension.extension:frameOfReferenceUid.value[x]
                Definition

                The Frame of Reference UID identifying the coordinate system that conveys spatial and/or temporal information for the selected images or frames.

                ShortThe Frame of Reference UID for the selected images
                Typeid
                [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                56. Extension.extension:bodySite
                Slice NamebodySite
                Definition

                The anatomic structures examined. See DICOM Part 16 Annex L (http://dicom.nema.org/medical/dicom/current/output/chtml/part16/chapter_L.html) for DICOM to SNOMED-CT mappings.

                ShortBody part examined
                Control0..1
                Is Modifierfalse
                58. Extension.extension:bodySite.extension:_datatype
                Slice Name_datatype
                Definition

                Data type name for ImagingSelection.bodySite from FHIR R5

                ShortData type name for ImagingSelection.bodySite from FHIR R5
                Control0..1
                TypeExtension(Datatype) (Extension Type: string)
                60. Extension.extension:bodySite.extension:_datatype.value[x]
                Comments

                Must be: CodeableReference

                Control1..1
                Typestring
                [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                Fixed ValueCodeableReference
                62. Extension.extension:bodySite.extension:concept
                Slice Nameconcept
                Definition

                A reference to a concept - e.g. the information is identified by its general class to the degree of precision found in the terminology.

                ShortReference to a concept (by class)
                Control0..1
                Is Modifierfalse
                64. Extension.extension:bodySite.extension:concept.value[x]
                Definition

                A reference to a concept - e.g. the information is identified by its general class to the degree of precision found in the terminology.

                ShortReference to a concept (by class)
                TypeCodeableConcept
                [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                66. Extension.extension:bodySite.extension:reference
                Slice Namereference
                Definition

                A reference to a resource the provides exact details about the information being referenced.

                ShortReference to a resource (by instance)
                Control0..1
                Is Modifierfalse
                68. Extension.extension:bodySite.extension:reference.value[x]
                Definition

                A reference to a resource the provides exact details about the information being referenced.

                ShortReference to a resource (by instance)
                TypeReference
                [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                70. Extension.extension:focus
                Slice Namefocus
                Definition

                The actual focus of an observation when it is not the patient of record representing something or someone associated with the patient such as a spouse, parent, fetus, or donor. For example, fetus observations in a mother's record. The focus of an observation could also be an existing condition, an intervention, the subject's diet, another observation of the subject, or a body structure such as tumor or implanted device. An example use case would be using the Observation resource to capture whether the mother is trained to change her child's tracheostomy tube. In this example, the child is the patient of record and the mother is the focus.

                ShortRelated resource that is the focus for the imaging selection
                Control0..*
                Is Modifierfalse
                72. Extension.extension:focus.value[x]
                Definition

                The actual focus of an observation when it is not the patient of record representing something or someone associated with the patient such as a spouse, parent, fetus, or donor. For example, fetus observations in a mother's record. The focus of an observation could also be an existing condition, an intervention, the subject's diet, another observation of the subject, or a body structure such as tumor or implanted device. An example use case would be using the Observation resource to capture whether the mother is trained to change her child's tracheostomy tube. In this example, the child is the patient of record and the mother is the focus.

                ShortRelated resource that is the focus for the imaging selection
                TypeReference(http://hl7.org/fhir/StructureDefinition/ImagingSelection)
                [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                74. Extension.extension:instance
                Slice Nameinstance
                Definition

                Each imaging selection includes one or more selected DICOM SOP instances.

                ShortThe selected instances
                Control0..*
                Is Modifierfalse
                76. Extension.extension:instance.extension
                Control1..*
                SlicingThis element introduces a set of slices on Extension.extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                • value @ url
                • 78. Extension.extension:instance.extension:uid
                  Slice Nameuid
                  Definition

                  The SOP Instance UID for the selected DICOM instance.

                  ShortDICOM SOP Instance UID
                  Control1..1
                  Is Modifierfalse
                  80. Extension.extension:instance.extension:uid.value[x]
                  Definition

                  The SOP Instance UID for the selected DICOM instance.

                  ShortDICOM SOP Instance UID
                  Typeid
                  [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                  Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                  82. Extension.extension:instance.extension:number
                  Slice Namenumber
                  Definition

                  The Instance Number for the selected DICOM instance.

                  ShortDICOM Instance Number
                  Control0..1
                  Is Modifierfalse
                  84. Extension.extension:instance.extension:number.value[x]
                  Definition

                  The Instance Number for the selected DICOM instance.

                  ShortDICOM Instance Number
                  TypeunsignedInt
                  [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                  Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                  86. Extension.extension:instance.extension:sopClass
                  Slice NamesopClass
                  Definition

                  The SOP Class UID for the selected DICOM instance.

                  ShortDICOM SOP Class UID
                  Control0..1
                  Is Modifierfalse
                  88. Extension.extension:instance.extension:sopClass.value[x]
                  Definition

                  The SOP Class UID for the selected DICOM instance.

                  ShortDICOM SOP Class UID
                  BindingUnless not suitable, these codes SHALL be taken from http://dicom.nema.org/medical/dicom/current/output/chtml/part04/sect_B.5.html#table_B.5-1
                  (extensible to http://dicom.nema.org/medical/dicom/current/output/chtml/part04/sect_B.5.html#table_B.5-1)

                  DICOM SOP Classes.

                  TypeCoding
                  [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                  90. Extension.extension:instance.extension:subset
                  Slice Namesubset
                  Definition

                  Selected subset of the SOP Instance. The content and format of the subset item is determined by the SOP Class of the selected instance. May be one of: - A list of frame numbers selected from a multiframe SOP Instance. - A list of Content Item Observation UID values selected from a DICOM SR or other structured document SOP Instance. - A list of segment numbers selected from a segmentation SOP Instance. - A list of Region of Interest (ROI) numbers selected from a radiotherapy structure set SOP Instance.

                  ShortThe selected subset of the SOP Instance
                  Control0..*
                  Is Modifierfalse
                  92. Extension.extension:instance.extension:subset.value[x]
                  Definition

                  Selected subset of the SOP Instance. The content and format of the subset item is determined by the SOP Class of the selected instance. May be one of: - A list of frame numbers selected from a multiframe SOP Instance. - A list of Content Item Observation UID values selected from a DICOM SR or other structured document SOP Instance. - A list of segment numbers selected from a segmentation SOP Instance. - A list of Region of Interest (ROI) numbers selected from a radiotherapy structure set SOP Instance.

                  ShortThe selected subset of the SOP Instance
                  Typestring
                  [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                  Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                  94. Extension.extension:instance.extension:imageRegion2D
                  Slice NameimageRegion2D
                  Definition

                  Each imaging selection instance or frame list might includes an image region, specified by a region type and a set of 2D coordinates. If the parent imagingSelection.instance contains a subset element of type frame, the image region applies to all frames in the subset list.

                  ShortA specific 2D region in a DICOM image / frame
                  Control0..*
                  Is Modifierfalse
                  96. Extension.extension:instance.extension:imageRegion2D.extension
                  Control2..*
                  SlicingThis element introduces a set of slices on Extension.extension.extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                  • value @ url
                  • 98. Extension.extension:instance.extension:imageRegion2D.extension:regionType
                    Slice NameregionType
                    Definition

                    Specifies the type of image region.

                    Shortpoint | polyline | interpolated | circle | ellipse
                    Control1..1
                    Is Modifierfalse
                    100. Extension.extension:instance.extension:imageRegion2D.extension:regionType.value[x]
                    Definition

                    Specifies the type of image region.

                    Shortpoint | polyline | interpolated | circle | ellipse
                    BindingThe codes SHALL be taken from Cross-version VS for R5.ImagingSelection2DGraphicType for use in FHIR R4
                    (required to http://hl7.org/fhir/uv/xver/5.0/ValueSet/R5-imagingselection-2dgraphictype-for-R4)

                    The type of image region.

                    Typecode
                    [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                    102. Extension.extension:instance.extension:imageRegion2D.extension:coordinate
                    Slice Namecoordinate
                    Definition

                    The coordinates describing the image region. Encoded as a set of (column, row) pairs that denote positions in the selected image / frames specified with sub-pixel resolution. The origin at the TLHC of the TLHC pixel is 0.0\0.0, the BRHC of the TLHC pixel is 1.0\1.0, and the BRHC of the BRHC pixel is the number of columns\rows in the image / frames. The values must be within the range 0\0 to the number of columns\rows in the image / frames.

                    ShortSpecifies the coordinates that define the image region
                    Control1..*
                    Is Modifierfalse
                    104. Extension.extension:instance.extension:imageRegion2D.extension:coordinate.value[x]
                    Definition

                    The coordinates describing the image region. Encoded as a set of (column, row) pairs that denote positions in the selected image / frames specified with sub-pixel resolution. The origin at the TLHC of the TLHC pixel is 0.0\0.0, the BRHC of the TLHC pixel is 1.0\1.0, and the BRHC of the BRHC pixel is the number of columns\rows in the image / frames. The values must be within the range 0\0 to the number of columns\rows in the image / frames.

                    ShortSpecifies the coordinates that define the image region
                    Typedecimal
                    [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                    106. Extension.extension:instance.extension:imageRegion3D
                    Slice NameimageRegion3D
                    Definition

                    Each imaging selection might includes a 3D image region, specified by a region type and a set of 3D coordinates.

                    ShortA specific 3D region in a DICOM frame of reference
                    Control0..*
                    Is Modifierfalse
                    108. Extension.extension:instance.extension:imageRegion3D.extension
                    Control2..*
                    SlicingThis element introduces a set of slices on Extension.extension.extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                    • value @ url
                    • 110. Extension.extension:instance.extension:imageRegion3D.extension:regionType
                      Slice NameregionType
                      Definition

                      Specifies the type of image region.

                      Shortpoint | multipoint | polyline | polygon | ellipse | ellipsoid
                      Control1..1
                      Is Modifierfalse
                      112. Extension.extension:instance.extension:imageRegion3D.extension:regionType.value[x]
                      Definition

                      Specifies the type of image region.

                      Shortpoint | multipoint | polyline | polygon | ellipse | ellipsoid
                      BindingThe codes SHALL be taken from Cross-version VS for R5.ImagingSelection3DGraphicType for use in FHIR R4
                      (required to http://hl7.org/fhir/uv/xver/5.0/ValueSet/R5-imagingselection-3dgraphictype-for-R4)

                      The type of image region.

                      Typecode
                      [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                      114. Extension.extension:instance.extension:imageRegion3D.extension:coordinate
                      Slice Namecoordinate
                      Definition

                      The coordinates describing the image region. Encoded as an ordered set of (x,y,z) triplets (in mm and may be negative) that define a region of interest in the patient-relative Reference Coordinate System defined by ImagingSelection.frameOfReferenceUid element.

                      ShortSpecifies the coordinates that define the image region
                      Control1..*
                      Is Modifierfalse
                      116. Extension.extension:instance.extension:imageRegion3D.extension:coordinate.value[x]
                      Definition

                      The coordinates describing the image region. Encoded as an ordered set of (x,y,z) triplets (in mm and may be negative) that define a region of interest in the patient-relative Reference Coordinate System defined by ImagingSelection.frameOfReferenceUid element.

                      ShortSpecifies the coordinates that define the image region
                      Typedecimal
                      [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                      118. Extension.url
                      Control1..1
                      Fixed Valuehttp://hl7.org/fhir/5.0/StructureDefinition/extension-ImagingSelection

                      Guidance on how to interpret the contents of this table can be foundhere

                      0. Extension
                      Definition

                      A selection of DICOM SOP instances and/or frames within a single Study and Series. This might include additional specifics such as an image region, an Observation UID or a Segmentation Number, allowing linkage to an Observation Resource or transferring this information along with the ImagingStudy Resource.

                      ShortA selection of DICOM SOP instances and/or frames
                      Control0..*
                      This element is affected by the following invariants: ele-1
                      Is Modifierfalse
                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                      2. Extension.id
                      Definition

                      Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                      ShortUnique id for inter-element referencing
                      Control0..1
                      Typeid
                      Is Modifierfalse
                      XML FormatIn the XML format, this property is represented as an attribute.
                      Summaryfalse
                      4. Extension.extension
                      Definition

                      May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                      ShortAdditional content defined by implementations
                      Comments

                      There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                      Control2..*
                      TypeExtension
                      Is Modifierfalse
                      Summaryfalse
                      Alternate Namesextensions, user content
                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                      SlicingThis element introduces a set of slices on Extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                      • value @ url
                      • 6. Extension.extension:status
                        Slice Namestatus
                        Definition

                        The current state of the ImagingSelection resource. This is not the status of any ImagingStudy, ServiceRequest, or Task resources associated with the ImagingSelection.

                        Shortavailable | entered-in-error | unknown
                        Comments

                        There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                        Control1..1
                        TypeExtension
                        Is Modifiertrue because This element is labeled as a modifier because it is a status element that contains status entered-in-error which means that the resource should not be treated as valid
                        Summaryfalse
                        Alternate Namesextensions, user content
                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                        8. Extension.extension:status.id
                        Definition

                        Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                        ShortUnique id for inter-element referencing
                        Control0..1
                        Typeid
                        Is Modifierfalse
                        XML FormatIn the XML format, this property is represented as an attribute.
                        Summaryfalse
                        10. Extension.extension:status.extension
                        Definition

                        May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                        ShortAdditional content defined by implementations
                        Comments

                        There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                        Control0..*
                        TypeExtension
                        Is Modifierfalse
                        Summaryfalse
                        Alternate Namesextensions, user content
                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                        SlicingThis element introduces a set of slices on Extension.extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                        • value @ url
                        • 12. Extension.extension:status.url
                          Definition

                          Source of the definition for the extension code - a logical name or a URL.

                          Shortidentifies the meaning of the extension
                          Comments

                          The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.

                          Control1..1
                          Typeuri
                          Is Modifierfalse
                          XML FormatIn the XML format, this property is represented as an attribute.
                          Summaryfalse
                          Fixed Valuestatus
                          14. Extension.extension:status.value[x]
                          Definition

                          The current state of the ImagingSelection resource. This is not the status of any ImagingStudy, ServiceRequest, or Task resources associated with the ImagingSelection.

                          Shortavailable | entered-in-error | unknown
                          Control0..1
                          BindingThe codes SHALL be taken from Cross-version VS for R5.ImagingSelectionStatus for use in FHIR R4
                          (required to http://hl7.org/fhir/uv/xver/5.0/ValueSet/R5-imagingselection-status-for-R4)

                          The status of the ImagingSelection.

                          Typecode
                          [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                          Is Modifierfalse
                          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                          Summaryfalse
                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                          16. Extension.extension:issued
                          Slice Nameissued
                          Definition

                          The date and time this imaging selection was created.

                          ShortDate / Time when this imaging selection was created
                          Comments

                          There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                          Control0..1
                          TypeExtension
                          Is Modifierfalse
                          Summaryfalse
                          Alternate Namesextensions, user content
                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                          18. Extension.extension:issued.id
                          Definition

                          Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                          ShortUnique id for inter-element referencing
                          Control0..1
                          Typeid
                          Is Modifierfalse
                          XML FormatIn the XML format, this property is represented as an attribute.
                          Summaryfalse
                          20. Extension.extension:issued.extension
                          Definition

                          May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                          ShortAdditional content defined by implementations
                          Comments

                          There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                          Control0..*
                          TypeExtension
                          Is Modifierfalse
                          Summaryfalse
                          Alternate Namesextensions, user content
                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                          SlicingThis element introduces a set of slices on Extension.extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                          • value @ url
                          • 22. Extension.extension:issued.url
                            Definition

                            Source of the definition for the extension code - a logical name or a URL.

                            Shortidentifies the meaning of the extension
                            Comments

                            The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.

                            Control1..1
                            Typeuri
                            Is Modifierfalse
                            XML FormatIn the XML format, this property is represented as an attribute.
                            Summaryfalse
                            Fixed Valueissued
                            24. Extension.extension:issued.value[x]
                            Definition

                            The date and time this imaging selection was created.

                            ShortDate / Time when this imaging selection was created
                            Control0..1
                            Typeinstant
                            [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                            Is Modifierfalse
                            Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                            Summaryfalse
                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                            26. Extension.extension:performer
                            Slice Nameperformer
                            Definition

                            Selector of the instances – human or machine.

                            ShortSelector of the instances (human or machine)
                            Comments

                            There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                            Control0..*
                            TypeExtension
                            Is Modifierfalse
                            Summaryfalse
                            Alternate Namesextensions, user content
                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                            ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                            28. Extension.extension:performer.id
                            Definition

                            Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                            ShortUnique id for inter-element referencing
                            Control0..1
                            Typeid
                            Is Modifierfalse
                            XML FormatIn the XML format, this property is represented as an attribute.
                            Summaryfalse
                            30. Extension.extension:performer.extension
                            Definition

                            May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                            ShortAdditional content defined by implementations
                            Comments

                            There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                            Control0..*
                            TypeExtension
                            Is Modifierfalse
                            Summaryfalse
                            Alternate Namesextensions, user content
                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                            ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                            SlicingThis element introduces a set of slices on Extension.extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                            • value @ url
                            • 32. Extension.extension:performer.extension:function
                              Slice Namefunction
                              Definition

                              Distinguishes the type of involvement of the performer.

                              ShortType of performer
                              Comments

                              There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                              Control0..1
                              TypeExtension
                              Is Modifierfalse
                              Summaryfalse
                              Alternate Namesextensions, user content
                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                              ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                              34. Extension.extension:performer.extension:function.id
                              Definition

                              Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                              ShortUnique id for inter-element referencing
                              Control0..1
                              Typeid
                              Is Modifierfalse
                              XML FormatIn the XML format, this property is represented as an attribute.
                              Summaryfalse
                              36. Extension.extension:performer.extension:function.extension
                              Definition

                              May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                              ShortAdditional content defined by implementations
                              Comments

                              There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                              Control0..*
                              TypeExtension
                              Is Modifierfalse
                              Summaryfalse
                              Alternate Namesextensions, user content
                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                              ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                              SlicingThis element introduces a set of slices on Extension.extension.extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                              • value @ url
                              • 38. Extension.extension:performer.extension:function.url
                                Definition

                                Source of the definition for the extension code - a logical name or a URL.

                                Shortidentifies the meaning of the extension
                                Comments

                                The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.

                                Control1..1
                                Typeuri
                                Is Modifierfalse
                                XML FormatIn the XML format, this property is represented as an attribute.
                                Summaryfalse
                                Fixed Valuefunction
                                40. Extension.extension:performer.extension:function.value[x]
                                Definition

                                Distinguishes the type of involvement of the performer.

                                ShortType of performer
                                Control0..1
                                BindingUnless not suitable, these codes SHALL be taken from ImagingStudySeriesPerformerFunction
                                (extensible to http://hl7.org/fhir/ValueSet/series-performer-function)

                                The type of involvement of the performer.

                                TypeCodeableConcept
                                [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                                Is Modifierfalse
                                Summaryfalse
                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                42. Extension.extension:performer.extension:actor
                                Slice Nameactor
                                Definition

                                Author – human or machine.

                                ShortAuthor (human or machine)
                                Comments

                                There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                Control0..1
                                TypeExtension
                                Is Modifierfalse
                                Summaryfalse
                                Alternate Namesextensions, user content
                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                44. Extension.extension:performer.extension:actor.id
                                Definition

                                Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                ShortUnique id for inter-element referencing
                                Control0..1
                                Typeid
                                Is Modifierfalse
                                XML FormatIn the XML format, this property is represented as an attribute.
                                Summaryfalse
                                46. Extension.extension:performer.extension:actor.extension
                                Definition

                                May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                ShortAdditional content defined by implementations
                                Comments

                                There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                Control0..*
                                TypeExtension
                                Is Modifierfalse
                                Summaryfalse
                                Alternate Namesextensions, user content
                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                SlicingThis element introduces a set of slices on Extension.extension.extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                                • value @ url
                                • 48. Extension.extension:performer.extension:actor.url
                                  Definition

                                  Source of the definition for the extension code - a logical name or a URL.

                                  Shortidentifies the meaning of the extension
                                  Comments

                                  The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.

                                  Control1..1
                                  Typeuri
                                  Is Modifierfalse
                                  XML FormatIn the XML format, this property is represented as an attribute.
                                  Summaryfalse
                                  Fixed Valueactor
                                  50. Extension.extension:performer.extension:actor.value[x]
                                  Definition

                                  Author – human or machine.

                                  ShortAuthor (human or machine)
                                  Control0..1
                                  TypeReference(Practitioner, PractitionerRole, Device, Organization, CareTeam, Patient, RelatedPerson, HealthcareService)
                                  [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                                  Is Modifierfalse
                                  Summaryfalse
                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                  52. Extension.extension:performer.url
                                  Definition

                                  Source of the definition for the extension code - a logical name or a URL.

                                  Shortidentifies the meaning of the extension
                                  Comments

                                  The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.

                                  Control1..1
                                  Typeuri
                                  Is Modifierfalse
                                  XML FormatIn the XML format, this property is represented as an attribute.
                                  Summaryfalse
                                  Fixed Valueperformer
                                  54. Extension.extension:performer.value[x]
                                  Definition

                                  Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).

                                  ShortValue of extension
                                  Control0..1
                                  TypeChoice of: base64Binary, boolean, canonical, code, date, dateTime, decimal, id, instant, integer, markdown, oid, positiveInt, string, time, unsignedInt, uri, url, uuid, Address, Age, Annotation, Attachment, CodeableConcept, Coding, ContactPoint, Count, Distance, Duration, HumanName, Identifier, Money, Period, Quantity, Range, Ratio, Reference, SampledData, Signature, Timing, ContactDetail, Contributor, DataRequirement, Expression, ParameterDefinition, RelatedArtifact, TriggerDefinition, UsageContext, Dosage, Meta
                                  [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                                  Is Modifierfalse
                                  Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                  Summaryfalse
                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                  56. Extension.extension:basedOn
                                  Slice NamebasedOn
                                  Definition

                                  A list of the diagnostic requests that resulted in this imaging selection being performed.

                                  ShortAssociated request
                                  Comments

                                  There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                  Control0..*
                                  TypeExtension
                                  Is Modifierfalse
                                  Summaryfalse
                                  Alternate Namesextensions, user content
                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                  ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                  58. Extension.extension:basedOn.id
                                  Definition

                                  Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                  ShortUnique id for inter-element referencing
                                  Control0..1
                                  Typeid
                                  Is Modifierfalse
                                  XML FormatIn the XML format, this property is represented as an attribute.
                                  Summaryfalse
                                  60. Extension.extension:basedOn.extension
                                  Definition

                                  May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                  ShortAdditional content defined by implementations
                                  Comments

                                  There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                  Control0..*
                                  TypeExtension
                                  Is Modifierfalse
                                  Summaryfalse
                                  Alternate Namesextensions, user content
                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                  ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                  SlicingThis element introduces a set of slices on Extension.extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                                  • value @ url
                                  • 62. Extension.extension:basedOn.url
                                    Definition

                                    Source of the definition for the extension code - a logical name or a URL.

                                    Shortidentifies the meaning of the extension
                                    Comments

                                    The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.

                                    Control1..1
                                    Typeuri
                                    Is Modifierfalse
                                    XML FormatIn the XML format, this property is represented as an attribute.
                                    Summaryfalse
                                    Fixed ValuebasedOn
                                    64. Extension.extension:basedOn.value[x]
                                    Definition

                                    A list of the diagnostic requests that resulted in this imaging selection being performed.

                                    ShortAssociated request
                                    Control0..1
                                    TypeReference(CarePlan, ServiceRequest, Appointment, AppointmentResponse, Task)
                                    [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                                    Is Modifierfalse
                                    Summaryfalse
                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                    66. Extension.extension:category
                                    Slice Namecategory
                                    Definition

                                    May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                    ShortClassifies the imaging selection
                                    Comments

                                    There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                    Control0..*
                                    TypeExtension
                                    Is Modifierfalse
                                    Summaryfalse
                                    Alternate Namesextensions, user content
                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                    68. Extension.extension:category.id
                                    Definition

                                    Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                    ShortUnique id for inter-element referencing
                                    Control0..1
                                    Typeid
                                    Is Modifierfalse
                                    XML FormatIn the XML format, this property is represented as an attribute.
                                    Summaryfalse
                                    70. Extension.extension:category.extension
                                    Definition

                                    May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                    ShortAdditional content defined by implementations
                                    Comments

                                    There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                    Control0..*
                                    TypeExtension
                                    Is Modifierfalse
                                    Summaryfalse
                                    Alternate Namesextensions, user content
                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                    SlicingThis element introduces a set of slices on Extension.extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                                    • value @ url
                                    • 72. Extension.extension:category.url
                                      Definition

                                      Source of the definition for the extension code - a logical name or a URL.

                                      Shortidentifies the meaning of the extension
                                      Comments

                                      The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.

                                      Control1..1
                                      Typeuri
                                      Is Modifierfalse
                                      XML FormatIn the XML format, this property is represented as an attribute.
                                      Summaryfalse
                                      Fixed Valuecategory
                                      74. Extension.extension:category.value[x]
                                      Definition

                                      Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).

                                      ShortClassifies the imaging selection
                                      Control0..1
                                      BindingFor example codes, see KeyObjectSelectionDocumentTitle
                                      (example to http://dicom.nema.org/medical/dicom/current/output/chtml/part16/sect_CID_7010.html)

                                      Key Object Selection Document Title.

                                      TypeCodeableConcept
                                      [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                                      Is Modifierfalse
                                      Summaryfalse
                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                      76. Extension.extension:studyUid
                                      Slice NamestudyUid
                                      Definition

                                      The Study Instance UID for the DICOM Study from which the images were selected.

                                      ShortDICOM Study Instance UID
                                      Comments

                                      There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                      Control0..1
                                      TypeExtension
                                      Is Modifierfalse
                                      Summaryfalse
                                      Alternate Namesextensions, user content
                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                      78. Extension.extension:studyUid.id
                                      Definition

                                      Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                      ShortUnique id for inter-element referencing
                                      Control0..1
                                      Typeid
                                      Is Modifierfalse
                                      XML FormatIn the XML format, this property is represented as an attribute.
                                      Summaryfalse
                                      80. Extension.extension:studyUid.extension
                                      Definition

                                      May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                      ShortAdditional content defined by implementations
                                      Comments

                                      There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                      Control0..*
                                      TypeExtension
                                      Is Modifierfalse
                                      Summaryfalse
                                      Alternate Namesextensions, user content
                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                      SlicingThis element introduces a set of slices on Extension.extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                                      • value @ url
                                      • 82. Extension.extension:studyUid.url
                                        Definition

                                        Source of the definition for the extension code - a logical name or a URL.

                                        Shortidentifies the meaning of the extension
                                        Comments

                                        The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.

                                        Control1..1
                                        Typeuri
                                        Is Modifierfalse
                                        XML FormatIn the XML format, this property is represented as an attribute.
                                        Summaryfalse
                                        Fixed ValuestudyUid
                                        84. Extension.extension:studyUid.value[x]
                                        Definition

                                        The Study Instance UID for the DICOM Study from which the images were selected.

                                        ShortDICOM Study Instance UID
                                        Control0..1
                                        Typeid
                                        [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                                        Is Modifierfalse
                                        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                        Summaryfalse
                                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                        86. Extension.extension:derivedFrom
                                        Slice NamederivedFrom
                                        Definition

                                        The imaging study from which the imaging selection is made.

                                        ShortThe imaging study from which the imaging selection is derived
                                        Comments

                                        There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                        Control0..*
                                        TypeExtension
                                        Is Modifierfalse
                                        Summaryfalse
                                        Alternate Namesextensions, user content
                                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                        ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                        88. Extension.extension:derivedFrom.id
                                        Definition

                                        Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                        ShortUnique id for inter-element referencing
                                        Control0..1
                                        Typeid
                                        Is Modifierfalse
                                        XML FormatIn the XML format, this property is represented as an attribute.
                                        Summaryfalse
                                        90. Extension.extension:derivedFrom.extension
                                        Definition

                                        May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                        ShortAdditional content defined by implementations
                                        Comments

                                        There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                        Control0..*
                                        TypeExtension
                                        Is Modifierfalse
                                        Summaryfalse
                                        Alternate Namesextensions, user content
                                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                        ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                        SlicingThis element introduces a set of slices on Extension.extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                                        • value @ url
                                        • 92. Extension.extension:derivedFrom.url
                                          Definition

                                          Source of the definition for the extension code - a logical name or a URL.

                                          Shortidentifies the meaning of the extension
                                          Comments

                                          The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.

                                          Control1..1
                                          Typeuri
                                          Is Modifierfalse
                                          XML FormatIn the XML format, this property is represented as an attribute.
                                          Summaryfalse
                                          Fixed ValuederivedFrom
                                          94. Extension.extension:derivedFrom.value[x]
                                          Definition

                                          The imaging study from which the imaging selection is made.

                                          ShortThe imaging study from which the imaging selection is derived
                                          Control0..1
                                          TypeReference(ImagingStudy, DocumentReference)
                                          [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                                          Is Modifierfalse
                                          Summaryfalse
                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                          96. Extension.extension:endpoint
                                          Slice Nameendpoint
                                          Definition

                                          The network service providing retrieval access to the selected images, frames, etc. See implementation notes for information about using DICOM endpoints.

                                          ShortThe network service providing retrieval for the images referenced in the imaging selection
                                          Comments

                                          There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                          Control0..*
                                          TypeExtension
                                          Is Modifierfalse
                                          Summaryfalse
                                          Alternate Namesextensions, user content
                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                          98. Extension.extension:endpoint.id
                                          Definition

                                          Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                          ShortUnique id for inter-element referencing
                                          Control0..1
                                          Typeid
                                          Is Modifierfalse
                                          XML FormatIn the XML format, this property is represented as an attribute.
                                          Summaryfalse
                                          100. Extension.extension:endpoint.extension
                                          Definition

                                          May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                          ShortAdditional content defined by implementations
                                          Comments

                                          There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                          Control0..*
                                          TypeExtension
                                          Is Modifierfalse
                                          Summaryfalse
                                          Alternate Namesextensions, user content
                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                          SlicingThis element introduces a set of slices on Extension.extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                                          • value @ url
                                          • 102. Extension.extension:endpoint.url
                                            Definition

                                            Source of the definition for the extension code - a logical name or a URL.

                                            Shortidentifies the meaning of the extension
                                            Comments

                                            The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.

                                            Control1..1
                                            Typeuri
                                            Is Modifierfalse
                                            XML FormatIn the XML format, this property is represented as an attribute.
                                            Summaryfalse
                                            Fixed Valueendpoint
                                            104. Extension.extension:endpoint.value[x]
                                            Definition

                                            The network service providing retrieval access to the selected images, frames, etc. See implementation notes for information about using DICOM endpoints.

                                            ShortThe network service providing retrieval for the images referenced in the imaging selection
                                            Control0..1
                                            TypeReference(Endpoint)
                                            [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                                            Is Modifierfalse
                                            Summaryfalse
                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                            106. Extension.extension:seriesUid
                                            Slice NameseriesUid
                                            Definition

                                            The Series Instance UID for the DICOM Series from which the images were selected.

                                            ShortDICOM Series Instance UID
                                            Comments

                                            There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                            Control0..1
                                            TypeExtension
                                            Is Modifierfalse
                                            Summaryfalse
                                            Alternate Namesextensions, user content
                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                            ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                            108. Extension.extension:seriesUid.id
                                            Definition

                                            Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                            ShortUnique id for inter-element referencing
                                            Control0..1
                                            Typeid
                                            Is Modifierfalse
                                            XML FormatIn the XML format, this property is represented as an attribute.
                                            Summaryfalse
                                            110. Extension.extension:seriesUid.extension
                                            Definition

                                            May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                            ShortAdditional content defined by implementations
                                            Comments

                                            There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                            Control0..*
                                            TypeExtension
                                            Is Modifierfalse
                                            Summaryfalse
                                            Alternate Namesextensions, user content
                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                            ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                            SlicingThis element introduces a set of slices on Extension.extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                                            • value @ url
                                            • 112. Extension.extension:seriesUid.url
                                              Definition

                                              Source of the definition for the extension code - a logical name or a URL.

                                              Shortidentifies the meaning of the extension
                                              Comments

                                              The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.

                                              Control1..1
                                              Typeuri
                                              Is Modifierfalse
                                              XML FormatIn the XML format, this property is represented as an attribute.
                                              Summaryfalse
                                              Fixed ValueseriesUid
                                              114. Extension.extension:seriesUid.value[x]
                                              Definition

                                              The Series Instance UID for the DICOM Series from which the images were selected.

                                              ShortDICOM Series Instance UID
                                              Control0..1
                                              Typeid
                                              [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                                              Is Modifierfalse
                                              Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                              Summaryfalse
                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                              116. Extension.extension:seriesNumber
                                              Slice NameseriesNumber
                                              Definition

                                              The Series Number for the DICOM Series from which the images were selected.

                                              ShortDICOM Series Number
                                              Comments

                                              There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                              Control0..1
                                              TypeExtension
                                              Is Modifierfalse
                                              Summaryfalse
                                              Alternate Namesextensions, user content
                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                              ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                              118. Extension.extension:seriesNumber.id
                                              Definition

                                              Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                              ShortUnique id for inter-element referencing
                                              Control0..1
                                              Typeid
                                              Is Modifierfalse
                                              XML FormatIn the XML format, this property is represented as an attribute.
                                              Summaryfalse
                                              120. Extension.extension:seriesNumber.extension
                                              Definition

                                              May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                              ShortAdditional content defined by implementations
                                              Comments

                                              There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                              Control0..*
                                              TypeExtension
                                              Is Modifierfalse
                                              Summaryfalse
                                              Alternate Namesextensions, user content
                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                              ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                              SlicingThis element introduces a set of slices on Extension.extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                                              • value @ url
                                              • 122. Extension.extension:seriesNumber.url
                                                Definition

                                                Source of the definition for the extension code - a logical name or a URL.

                                                Shortidentifies the meaning of the extension
                                                Comments

                                                The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.

                                                Control1..1
                                                Typeuri
                                                Is Modifierfalse
                                                XML FormatIn the XML format, this property is represented as an attribute.
                                                Summaryfalse
                                                Fixed ValueseriesNumber
                                                124. Extension.extension:seriesNumber.value[x]
                                                Definition

                                                The Series Number for the DICOM Series from which the images were selected.

                                                ShortDICOM Series Number
                                                Control0..1
                                                TypeunsignedInt
                                                [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                                                Is Modifierfalse
                                                Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                Summaryfalse
                                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                126. Extension.extension:frameOfReferenceUid
                                                Slice NameframeOfReferenceUid
                                                Definition

                                                The Frame of Reference UID identifying the coordinate system that conveys spatial and/or temporal information for the selected images or frames.

                                                ShortThe Frame of Reference UID for the selected images
                                                Comments

                                                There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                Control0..1
                                                TypeExtension
                                                Is Modifierfalse
                                                Summaryfalse
                                                Alternate Namesextensions, user content
                                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                128. Extension.extension:frameOfReferenceUid.id
                                                Definition

                                                Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                                ShortUnique id for inter-element referencing
                                                Control0..1
                                                Typeid
                                                Is Modifierfalse
                                                XML FormatIn the XML format, this property is represented as an attribute.
                                                Summaryfalse
                                                130. Extension.extension:frameOfReferenceUid.extension
                                                Definition

                                                May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                                ShortAdditional content defined by implementations
                                                Comments

                                                There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                Control0..*
                                                TypeExtension
                                                Is Modifierfalse
                                                Summaryfalse
                                                Alternate Namesextensions, user content
                                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                SlicingThis element introduces a set of slices on Extension.extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                                                • value @ url
                                                • 132. Extension.extension:frameOfReferenceUid.url
                                                  Definition

                                                  Source of the definition for the extension code - a logical name or a URL.

                                                  Shortidentifies the meaning of the extension
                                                  Comments

                                                  The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.

                                                  Control1..1
                                                  Typeuri
                                                  Is Modifierfalse
                                                  XML FormatIn the XML format, this property is represented as an attribute.
                                                  Summaryfalse
                                                  Fixed ValueframeOfReferenceUid
                                                  134. Extension.extension:frameOfReferenceUid.value[x]
                                                  Definition

                                                  The Frame of Reference UID identifying the coordinate system that conveys spatial and/or temporal information for the selected images or frames.

                                                  ShortThe Frame of Reference UID for the selected images
                                                  Control0..1
                                                  Typeid
                                                  [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                                                  Is Modifierfalse
                                                  Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                  Summaryfalse
                                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                  136. Extension.extension:bodySite
                                                  Slice NamebodySite
                                                  Definition

                                                  The anatomic structures examined. See DICOM Part 16 Annex L (http://dicom.nema.org/medical/dicom/current/output/chtml/part16/chapter_L.html) for DICOM to SNOMED-CT mappings.

                                                  ShortBody part examined
                                                  Comments

                                                  There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                  Control0..1
                                                  TypeExtension
                                                  Is Modifierfalse
                                                  Summaryfalse
                                                  Alternate Namesextensions, user content
                                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                  ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                  138. Extension.extension:bodySite.id
                                                  Definition

                                                  Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                                  ShortUnique id for inter-element referencing
                                                  Control0..1
                                                  Typeid
                                                  Is Modifierfalse
                                                  XML FormatIn the XML format, this property is represented as an attribute.
                                                  Summaryfalse
                                                  140. Extension.extension:bodySite.extension
                                                  Definition

                                                  May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                                  ShortAdditional content defined by implementations
                                                  Comments

                                                  There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                  Control0..*
                                                  TypeExtension
                                                  Is Modifierfalse
                                                  Summaryfalse
                                                  Alternate Namesextensions, user content
                                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                  ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                  SlicingThis element introduces a set of slices on Extension.extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                                                  • value @ url
                                                  • 142. Extension.extension:bodySite.extension:_datatype
                                                    Slice Name_datatype
                                                    Definition

                                                    Data type name for ImagingSelection.bodySite from FHIR R5

                                                    ShortData type name for ImagingSelection.bodySite from FHIR R5
                                                    Comments

                                                    There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                    Control0..1
                                                    TypeExtension(Datatype) (Extension Type: string)
                                                    Is Modifierfalse
                                                    Summaryfalse
                                                    Alternate Namesextensions, user content
                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                    144. Extension.extension:bodySite.extension:_datatype.id
                                                    Definition

                                                    Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                                    ShortUnique id for inter-element referencing
                                                    Control0..1
                                                    Typeid
                                                    Is Modifierfalse
                                                    XML FormatIn the XML format, this property is represented as an attribute.
                                                    Summaryfalse
                                                    146. Extension.extension:bodySite.extension:_datatype.extension
                                                    Definition

                                                    May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                                    ShortAdditional content defined by implementations
                                                    Comments

                                                    There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                    Control0..*
                                                    TypeExtension
                                                    Is Modifierfalse
                                                    Summaryfalse
                                                    Alternate Namesextensions, user content
                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                    SlicingThis element introduces a set of slices on Extension.extension.extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                                                    • value @ url
                                                    • 148. Extension.extension:bodySite.extension:_datatype.url
                                                      Definition

                                                      Source of the definition for the extension code - a logical name or a URL.

                                                      Shortidentifies the meaning of the extension
                                                      Comments

                                                      The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.

                                                      Control1..1
                                                      Typeuri
                                                      Is Modifierfalse
                                                      XML FormatIn the XML format, this property is represented as an attribute.
                                                      Summaryfalse
                                                      Fixed Valuehttp://hl7.org/fhir/StructureDefinition/_datatype
                                                      150. Extension.extension:bodySite.extension:_datatype.value[x]
                                                      Definition

                                                      Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).

                                                      ShortValue of extension
                                                      Comments

                                                      Must be: CodeableReference

                                                      Control1..1
                                                      Typestring
                                                      [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                                                      Is Modifierfalse
                                                      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                      Summaryfalse
                                                      Fixed ValueCodeableReference
                                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                      152. Extension.extension:bodySite.extension:concept
                                                      Slice Nameconcept
                                                      Definition

                                                      A reference to a concept - e.g. the information is identified by its general class to the degree of precision found in the terminology.

                                                      ShortReference to a concept (by class)
                                                      Comments

                                                      There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                      Control0..1
                                                      TypeExtension
                                                      Is Modifierfalse
                                                      Summaryfalse
                                                      Alternate Namesextensions, user content
                                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                      154. Extension.extension:bodySite.extension:concept.id
                                                      Definition

                                                      Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                                      ShortUnique id for inter-element referencing
                                                      Control0..1
                                                      Typeid
                                                      Is Modifierfalse
                                                      XML FormatIn the XML format, this property is represented as an attribute.
                                                      Summaryfalse
                                                      156. Extension.extension:bodySite.extension:concept.extension
                                                      Definition

                                                      May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                                      ShortAdditional content defined by implementations
                                                      Comments

                                                      There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                      Control0..*
                                                      TypeExtension
                                                      Is Modifierfalse
                                                      Summaryfalse
                                                      Alternate Namesextensions, user content
                                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                      SlicingThis element introduces a set of slices on Extension.extension.extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                                                      • value @ url
                                                      • 158. Extension.extension:bodySite.extension:concept.url
                                                        Definition

                                                        Source of the definition for the extension code - a logical name or a URL.

                                                        Shortidentifies the meaning of the extension
                                                        Comments

                                                        The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.

                                                        Control1..1
                                                        Typeuri
                                                        Is Modifierfalse
                                                        XML FormatIn the XML format, this property is represented as an attribute.
                                                        Summaryfalse
                                                        Fixed Valueconcept
                                                        160. Extension.extension:bodySite.extension:concept.value[x]
                                                        Definition

                                                        A reference to a concept - e.g. the information is identified by its general class to the degree of precision found in the terminology.

                                                        ShortReference to a concept (by class)
                                                        Control0..1
                                                        TypeCodeableConcept
                                                        [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                                                        Is Modifierfalse
                                                        Summaryfalse
                                                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                        162. Extension.extension:bodySite.extension:reference
                                                        Slice Namereference
                                                        Definition

                                                        A reference to a resource the provides exact details about the information being referenced.

                                                        ShortReference to a resource (by instance)
                                                        Comments

                                                        There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                        Control0..1
                                                        TypeExtension
                                                        Is Modifierfalse
                                                        Summaryfalse
                                                        Alternate Namesextensions, user content
                                                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                        ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                        164. Extension.extension:bodySite.extension:reference.id
                                                        Definition

                                                        Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                                        ShortUnique id for inter-element referencing
                                                        Control0..1
                                                        Typeid
                                                        Is Modifierfalse
                                                        XML FormatIn the XML format, this property is represented as an attribute.
                                                        Summaryfalse
                                                        166. Extension.extension:bodySite.extension:reference.extension
                                                        Definition

                                                        May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                                        ShortAdditional content defined by implementations
                                                        Comments

                                                        There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                        Control0..*
                                                        TypeExtension
                                                        Is Modifierfalse
                                                        Summaryfalse
                                                        Alternate Namesextensions, user content
                                                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                        ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                        SlicingThis element introduces a set of slices on Extension.extension.extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                                                        • value @ url
                                                        • 168. Extension.extension:bodySite.extension:reference.url
                                                          Definition

                                                          Source of the definition for the extension code - a logical name or a URL.

                                                          Shortidentifies the meaning of the extension
                                                          Comments

                                                          The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.

                                                          Control1..1
                                                          Typeuri
                                                          Is Modifierfalse
                                                          XML FormatIn the XML format, this property is represented as an attribute.
                                                          Summaryfalse
                                                          Fixed Valuereference
                                                          170. Extension.extension:bodySite.extension:reference.value[x]
                                                          Definition

                                                          A reference to a resource the provides exact details about the information being referenced.

                                                          ShortReference to a resource (by instance)
                                                          Control0..1
                                                          TypeReference
                                                          [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                                                          Is Modifierfalse
                                                          Summaryfalse
                                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                          172. Extension.extension:bodySite.url
                                                          Definition

                                                          Source of the definition for the extension code - a logical name or a URL.

                                                          Shortidentifies the meaning of the extension
                                                          Comments

                                                          The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.

                                                          Control1..1
                                                          Typeuri
                                                          Is Modifierfalse
                                                          XML FormatIn the XML format, this property is represented as an attribute.
                                                          Summaryfalse
                                                          Fixed ValuebodySite
                                                          174. Extension.extension:bodySite.value[x]
                                                          Definition

                                                          Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).

                                                          ShortValue of extension
                                                          Control0..1
                                                          TypeChoice of: base64Binary, boolean, canonical, code, date, dateTime, decimal, id, instant, integer, markdown, oid, positiveInt, string, time, unsignedInt, uri, url, uuid, Address, Age, Annotation, Attachment, CodeableConcept, Coding, ContactPoint, Count, Distance, Duration, HumanName, Identifier, Money, Period, Quantity, Range, Ratio, Reference, SampledData, Signature, Timing, ContactDetail, Contributor, DataRequirement, Expression, ParameterDefinition, RelatedArtifact, TriggerDefinition, UsageContext, Dosage, Meta
                                                          [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                                                          Is Modifierfalse
                                                          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                          Summaryfalse
                                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                          176. Extension.extension:focus
                                                          Slice Namefocus
                                                          Definition

                                                          The actual focus of an observation when it is not the patient of record representing something or someone associated with the patient such as a spouse, parent, fetus, or donor. For example, fetus observations in a mother's record. The focus of an observation could also be an existing condition, an intervention, the subject's diet, another observation of the subject, or a body structure such as tumor or implanted device. An example use case would be using the Observation resource to capture whether the mother is trained to change her child's tracheostomy tube. In this example, the child is the patient of record and the mother is the focus.

                                                          ShortRelated resource that is the focus for the imaging selection
                                                          Comments

                                                          There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                          Control0..*
                                                          TypeExtension
                                                          Is Modifierfalse
                                                          Summaryfalse
                                                          Alternate Namesextensions, user content
                                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                          178. Extension.extension:focus.id
                                                          Definition

                                                          Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                                          ShortUnique id for inter-element referencing
                                                          Control0..1
                                                          Typeid
                                                          Is Modifierfalse
                                                          XML FormatIn the XML format, this property is represented as an attribute.
                                                          Summaryfalse
                                                          180. Extension.extension:focus.extension
                                                          Definition

                                                          May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                                          ShortAdditional content defined by implementations
                                                          Comments

                                                          There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                          Control0..*
                                                          TypeExtension
                                                          Is Modifierfalse
                                                          Summaryfalse
                                                          Alternate Namesextensions, user content
                                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                          SlicingThis element introduces a set of slices on Extension.extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                                                          • value @ url
                                                          • 182. Extension.extension:focus.url
                                                            Definition

                                                            Source of the definition for the extension code - a logical name or a URL.

                                                            Shortidentifies the meaning of the extension
                                                            Comments

                                                            The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.

                                                            Control1..1
                                                            Typeuri
                                                            Is Modifierfalse
                                                            XML FormatIn the XML format, this property is represented as an attribute.
                                                            Summaryfalse
                                                            Fixed Valuefocus
                                                            184. Extension.extension:focus.value[x]
                                                            Definition

                                                            The actual focus of an observation when it is not the patient of record representing something or someone associated with the patient such as a spouse, parent, fetus, or donor. For example, fetus observations in a mother's record. The focus of an observation could also be an existing condition, an intervention, the subject's diet, another observation of the subject, or a body structure such as tumor or implanted device. An example use case would be using the Observation resource to capture whether the mother is trained to change her child's tracheostomy tube. In this example, the child is the patient of record and the mother is the focus.

                                                            ShortRelated resource that is the focus for the imaging selection
                                                            Control0..1
                                                            TypeReference(http://hl7.org/fhir/StructureDefinition/ImagingSelection)
                                                            [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                                                            Is Modifierfalse
                                                            Summaryfalse
                                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                            186. Extension.extension:instance
                                                            Slice Nameinstance
                                                            Definition

                                                            Each imaging selection includes one or more selected DICOM SOP instances.

                                                            ShortThe selected instances
                                                            Comments

                                                            There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                            Control0..*
                                                            TypeExtension
                                                            Is Modifierfalse
                                                            Summaryfalse
                                                            Alternate Namesextensions, user content
                                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                            ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                            188. Extension.extension:instance.id
                                                            Definition

                                                            Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                                            ShortUnique id for inter-element referencing
                                                            Control0..1
                                                            Typeid
                                                            Is Modifierfalse
                                                            XML FormatIn the XML format, this property is represented as an attribute.
                                                            Summaryfalse
                                                            190. Extension.extension:instance.extension
                                                            Definition

                                                            May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                                            ShortAdditional content defined by implementations
                                                            Comments

                                                            There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                            Control1..*
                                                            TypeExtension
                                                            Is Modifierfalse
                                                            Summaryfalse
                                                            Alternate Namesextensions, user content
                                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                            ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                            SlicingThis element introduces a set of slices on Extension.extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                                                            • value @ url
                                                            • 192. Extension.extension:instance.extension:uid
                                                              Slice Nameuid
                                                              Definition

                                                              The SOP Instance UID for the selected DICOM instance.

                                                              ShortDICOM SOP Instance UID
                                                              Comments

                                                              There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                              Control1..1
                                                              TypeExtension
                                                              Is Modifierfalse
                                                              Summaryfalse
                                                              Alternate Namesextensions, user content
                                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                              ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                              194. Extension.extension:instance.extension:uid.id
                                                              Definition

                                                              Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                                              ShortUnique id for inter-element referencing
                                                              Control0..1
                                                              Typeid
                                                              Is Modifierfalse
                                                              XML FormatIn the XML format, this property is represented as an attribute.
                                                              Summaryfalse
                                                              196. Extension.extension:instance.extension:uid.extension
                                                              Definition

                                                              May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                                              ShortAdditional content defined by implementations
                                                              Comments

                                                              There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                              Control0..*
                                                              TypeExtension
                                                              Is Modifierfalse
                                                              Summaryfalse
                                                              Alternate Namesextensions, user content
                                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                              ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                              SlicingThis element introduces a set of slices on Extension.extension.extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                                                              • value @ url
                                                              • 198. Extension.extension:instance.extension:uid.url
                                                                Definition

                                                                Source of the definition for the extension code - a logical name or a URL.

                                                                Shortidentifies the meaning of the extension
                                                                Comments

                                                                The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.

                                                                Control1..1
                                                                Typeuri
                                                                Is Modifierfalse
                                                                XML FormatIn the XML format, this property is represented as an attribute.
                                                                Summaryfalse
                                                                Fixed Valueuid
                                                                200. Extension.extension:instance.extension:uid.value[x]
                                                                Definition

                                                                The SOP Instance UID for the selected DICOM instance.

                                                                ShortDICOM SOP Instance UID
                                                                Control0..1
                                                                Typeid
                                                                [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                                                                Is Modifierfalse
                                                                Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                                Summaryfalse
                                                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                202. Extension.extension:instance.extension:number
                                                                Slice Namenumber
                                                                Definition

                                                                The Instance Number for the selected DICOM instance.

                                                                ShortDICOM Instance Number
                                                                Comments

                                                                There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                                Control0..1
                                                                TypeExtension
                                                                Is Modifierfalse
                                                                Summaryfalse
                                                                Alternate Namesextensions, user content
                                                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                                204. Extension.extension:instance.extension:number.id
                                                                Definition

                                                                Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                                                ShortUnique id for inter-element referencing
                                                                Control0..1
                                                                Typeid
                                                                Is Modifierfalse
                                                                XML FormatIn the XML format, this property is represented as an attribute.
                                                                Summaryfalse
                                                                206. Extension.extension:instance.extension:number.extension
                                                                Definition

                                                                May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                                                ShortAdditional content defined by implementations
                                                                Comments

                                                                There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                                Control0..*
                                                                TypeExtension
                                                                Is Modifierfalse
                                                                Summaryfalse
                                                                Alternate Namesextensions, user content
                                                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                                SlicingThis element introduces a set of slices on Extension.extension.extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                                                                • value @ url
                                                                • 208. Extension.extension:instance.extension:number.url
                                                                  Definition

                                                                  Source of the definition for the extension code - a logical name or a URL.

                                                                  Shortidentifies the meaning of the extension
                                                                  Comments

                                                                  The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.

                                                                  Control1..1
                                                                  Typeuri
                                                                  Is Modifierfalse
                                                                  XML FormatIn the XML format, this property is represented as an attribute.
                                                                  Summaryfalse
                                                                  Fixed Valuenumber
                                                                  210. Extension.extension:instance.extension:number.value[x]
                                                                  Definition

                                                                  The Instance Number for the selected DICOM instance.

                                                                  ShortDICOM Instance Number
                                                                  Control0..1
                                                                  TypeunsignedInt
                                                                  [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                                                                  Is Modifierfalse
                                                                  Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                                  Summaryfalse
                                                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                  212. Extension.extension:instance.extension:sopClass
                                                                  Slice NamesopClass
                                                                  Definition

                                                                  The SOP Class UID for the selected DICOM instance.

                                                                  ShortDICOM SOP Class UID
                                                                  Comments

                                                                  There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                                  Control0..1
                                                                  TypeExtension
                                                                  Is Modifierfalse
                                                                  Summaryfalse
                                                                  Alternate Namesextensions, user content
                                                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                  ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                                  214. Extension.extension:instance.extension:sopClass.id
                                                                  Definition

                                                                  Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                                                  ShortUnique id for inter-element referencing
                                                                  Control0..1
                                                                  Typeid
                                                                  Is Modifierfalse
                                                                  XML FormatIn the XML format, this property is represented as an attribute.
                                                                  Summaryfalse
                                                                  216. Extension.extension:instance.extension:sopClass.extension
                                                                  Definition

                                                                  May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                                                  ShortAdditional content defined by implementations
                                                                  Comments

                                                                  There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                                  Control0..*
                                                                  TypeExtension
                                                                  Is Modifierfalse
                                                                  Summaryfalse
                                                                  Alternate Namesextensions, user content
                                                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                  ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                                  SlicingThis element introduces a set of slices on Extension.extension.extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                                                                  • value @ url
                                                                  • 218. Extension.extension:instance.extension:sopClass.url
                                                                    Definition

                                                                    Source of the definition for the extension code - a logical name or a URL.

                                                                    Shortidentifies the meaning of the extension
                                                                    Comments

                                                                    The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.

                                                                    Control1..1
                                                                    Typeuri
                                                                    Is Modifierfalse
                                                                    XML FormatIn the XML format, this property is represented as an attribute.
                                                                    Summaryfalse
                                                                    Fixed ValuesopClass
                                                                    220. Extension.extension:instance.extension:sopClass.value[x]
                                                                    Definition

                                                                    The SOP Class UID for the selected DICOM instance.

                                                                    ShortDICOM SOP Class UID
                                                                    Control0..1
                                                                    BindingUnless not suitable, these codes SHALL be taken from http://dicom.nema.org/medical/dicom/current/output/chtml/part04/sect_B.5.html#table_B.5-1
                                                                    (extensible to http://dicom.nema.org/medical/dicom/current/output/chtml/part04/sect_B.5.html#table_B.5-1)

                                                                    DICOM SOP Classes.

                                                                    TypeCoding
                                                                    [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                                                                    Is Modifierfalse
                                                                    Summaryfalse
                                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                    222. Extension.extension:instance.extension:subset
                                                                    Slice Namesubset
                                                                    Definition

                                                                    Selected subset of the SOP Instance. The content and format of the subset item is determined by the SOP Class of the selected instance. May be one of: - A list of frame numbers selected from a multiframe SOP Instance. - A list of Content Item Observation UID values selected from a DICOM SR or other structured document SOP Instance. - A list of segment numbers selected from a segmentation SOP Instance. - A list of Region of Interest (ROI) numbers selected from a radiotherapy structure set SOP Instance.

                                                                    ShortThe selected subset of the SOP Instance
                                                                    Comments

                                                                    There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                                    Control0..*
                                                                    TypeExtension
                                                                    Is Modifierfalse
                                                                    Summaryfalse
                                                                    Alternate Namesextensions, user content
                                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                                    224. Extension.extension:instance.extension:subset.id
                                                                    Definition

                                                                    Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                                                    ShortUnique id for inter-element referencing
                                                                    Control0..1
                                                                    Typeid
                                                                    Is Modifierfalse
                                                                    XML FormatIn the XML format, this property is represented as an attribute.
                                                                    Summaryfalse
                                                                    226. Extension.extension:instance.extension:subset.extension
                                                                    Definition

                                                                    May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                                                    ShortAdditional content defined by implementations
                                                                    Comments

                                                                    There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                                    Control0..*
                                                                    TypeExtension
                                                                    Is Modifierfalse
                                                                    Summaryfalse
                                                                    Alternate Namesextensions, user content
                                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                                    SlicingThis element introduces a set of slices on Extension.extension.extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                                                                    • value @ url
                                                                    • 228. Extension.extension:instance.extension:subset.url
                                                                      Definition

                                                                      Source of the definition for the extension code - a logical name or a URL.

                                                                      Shortidentifies the meaning of the extension
                                                                      Comments

                                                                      The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.

                                                                      Control1..1
                                                                      Typeuri
                                                                      Is Modifierfalse
                                                                      XML FormatIn the XML format, this property is represented as an attribute.
                                                                      Summaryfalse
                                                                      Fixed Valuesubset
                                                                      230. Extension.extension:instance.extension:subset.value[x]
                                                                      Definition

                                                                      Selected subset of the SOP Instance. The content and format of the subset item is determined by the SOP Class of the selected instance. May be one of: - A list of frame numbers selected from a multiframe SOP Instance. - A list of Content Item Observation UID values selected from a DICOM SR or other structured document SOP Instance. - A list of segment numbers selected from a segmentation SOP Instance. - A list of Region of Interest (ROI) numbers selected from a radiotherapy structure set SOP Instance.

                                                                      ShortThe selected subset of the SOP Instance
                                                                      Control0..1
                                                                      Typestring
                                                                      [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                                                                      Is Modifierfalse
                                                                      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                                      Summaryfalse
                                                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                      232. Extension.extension:instance.extension:imageRegion2D
                                                                      Slice NameimageRegion2D
                                                                      Definition

                                                                      Each imaging selection instance or frame list might includes an image region, specified by a region type and a set of 2D coordinates. If the parent imagingSelection.instance contains a subset element of type frame, the image region applies to all frames in the subset list.

                                                                      ShortA specific 2D region in a DICOM image / frame
                                                                      Comments

                                                                      There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                                      Control0..*
                                                                      TypeExtension
                                                                      Is Modifierfalse
                                                                      Summaryfalse
                                                                      Alternate Namesextensions, user content
                                                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                                      234. Extension.extension:instance.extension:imageRegion2D.id
                                                                      Definition

                                                                      Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                                                      ShortUnique id for inter-element referencing
                                                                      Control0..1
                                                                      Typeid
                                                                      Is Modifierfalse
                                                                      XML FormatIn the XML format, this property is represented as an attribute.
                                                                      Summaryfalse
                                                                      236. Extension.extension:instance.extension:imageRegion2D.extension
                                                                      Definition

                                                                      May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                                                      ShortAdditional content defined by implementations
                                                                      Comments

                                                                      There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                                      Control2..*
                                                                      TypeExtension
                                                                      Is Modifierfalse
                                                                      Summaryfalse
                                                                      Alternate Namesextensions, user content
                                                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                                      SlicingThis element introduces a set of slices on Extension.extension.extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                                                                      • value @ url
                                                                      • 238. Extension.extension:instance.extension:imageRegion2D.extension:regionType
                                                                        Slice NameregionType
                                                                        Definition

                                                                        Specifies the type of image region.

                                                                        Shortpoint | polyline | interpolated | circle | ellipse
                                                                        Comments

                                                                        There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                                        Control1..1
                                                                        TypeExtension
                                                                        Is Modifierfalse
                                                                        Summaryfalse
                                                                        Alternate Namesextensions, user content
                                                                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                        ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                                        240. Extension.extension:instance.extension:imageRegion2D.extension:regionType.id
                                                                        Definition

                                                                        Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                                                        ShortUnique id for inter-element referencing
                                                                        Control0..1
                                                                        Typeid
                                                                        Is Modifierfalse
                                                                        XML FormatIn the XML format, this property is represented as an attribute.
                                                                        Summaryfalse
                                                                        242. Extension.extension:instance.extension:imageRegion2D.extension:regionType.extension
                                                                        Definition

                                                                        May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                                                        ShortAdditional content defined by implementations
                                                                        Comments

                                                                        There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                                        Control0..*
                                                                        TypeExtension
                                                                        Is Modifierfalse
                                                                        Summaryfalse
                                                                        Alternate Namesextensions, user content
                                                                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                        ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                                        SlicingThis element introduces a set of slices on Extension.extension.extension.extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                                                                        • value @ url
                                                                        • 244. Extension.extension:instance.extension:imageRegion2D.extension:regionType.url
                                                                          Definition

                                                                          Source of the definition for the extension code - a logical name or a URL.

                                                                          Shortidentifies the meaning of the extension
                                                                          Comments

                                                                          The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.

                                                                          Control1..1
                                                                          Typeuri
                                                                          Is Modifierfalse
                                                                          XML FormatIn the XML format, this property is represented as an attribute.
                                                                          Summaryfalse
                                                                          Fixed ValueregionType
                                                                          246. Extension.extension:instance.extension:imageRegion2D.extension:regionType.value[x]
                                                                          Definition

                                                                          Specifies the type of image region.

                                                                          Shortpoint | polyline | interpolated | circle | ellipse
                                                                          Control0..1
                                                                          BindingThe codes SHALL be taken from Cross-version VS for R5.ImagingSelection2DGraphicType for use in FHIR R4
                                                                          (required to http://hl7.org/fhir/uv/xver/5.0/ValueSet/R5-imagingselection-2dgraphictype-for-R4)

                                                                          The type of image region.

                                                                          Typecode
                                                                          [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                                                                          Is Modifierfalse
                                                                          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                                          Summaryfalse
                                                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                          248. Extension.extension:instance.extension:imageRegion2D.extension:coordinate
                                                                          Slice Namecoordinate
                                                                          Definition

                                                                          The coordinates describing the image region. Encoded as a set of (column, row) pairs that denote positions in the selected image / frames specified with sub-pixel resolution. The origin at the TLHC of the TLHC pixel is 0.0\0.0, the BRHC of the TLHC pixel is 1.0\1.0, and the BRHC of the BRHC pixel is the number of columns\rows in the image / frames. The values must be within the range 0\0 to the number of columns\rows in the image / frames.

                                                                          ShortSpecifies the coordinates that define the image region
                                                                          Comments

                                                                          There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                                          Control1..*
                                                                          TypeExtension
                                                                          Is Modifierfalse
                                                                          Summaryfalse
                                                                          Alternate Namesextensions, user content
                                                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                                          250. Extension.extension:instance.extension:imageRegion2D.extension:coordinate.id
                                                                          Definition

                                                                          Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                                                          ShortUnique id for inter-element referencing
                                                                          Control0..1
                                                                          Typeid
                                                                          Is Modifierfalse
                                                                          XML FormatIn the XML format, this property is represented as an attribute.
                                                                          Summaryfalse
                                                                          252. Extension.extension:instance.extension:imageRegion2D.extension:coordinate.extension
                                                                          Definition

                                                                          May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                                                          ShortAdditional content defined by implementations
                                                                          Comments

                                                                          There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                                          Control0..*
                                                                          TypeExtension
                                                                          Is Modifierfalse
                                                                          Summaryfalse
                                                                          Alternate Namesextensions, user content
                                                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                                          SlicingThis element introduces a set of slices on Extension.extension.extension.extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                                                                          • value @ url
                                                                          • 254. Extension.extension:instance.extension:imageRegion2D.extension:coordinate.url
                                                                            Definition

                                                                            Source of the definition for the extension code - a logical name or a URL.

                                                                            Shortidentifies the meaning of the extension
                                                                            Comments

                                                                            The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.

                                                                            Control1..1
                                                                            Typeuri
                                                                            Is Modifierfalse
                                                                            XML FormatIn the XML format, this property is represented as an attribute.
                                                                            Summaryfalse
                                                                            Fixed Valuecoordinate
                                                                            256. Extension.extension:instance.extension:imageRegion2D.extension:coordinate.value[x]
                                                                            Definition

                                                                            The coordinates describing the image region. Encoded as a set of (column, row) pairs that denote positions in the selected image / frames specified with sub-pixel resolution. The origin at the TLHC of the TLHC pixel is 0.0\0.0, the BRHC of the TLHC pixel is 1.0\1.0, and the BRHC of the BRHC pixel is the number of columns\rows in the image / frames. The values must be within the range 0\0 to the number of columns\rows in the image / frames.

                                                                            ShortSpecifies the coordinates that define the image region
                                                                            Control0..1
                                                                            Typedecimal
                                                                            [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                                                                            Is Modifierfalse
                                                                            Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                                            Summaryfalse
                                                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                            258. Extension.extension:instance.extension:imageRegion2D.url
                                                                            Definition

                                                                            Source of the definition for the extension code - a logical name or a URL.

                                                                            Shortidentifies the meaning of the extension
                                                                            Comments

                                                                            The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.

                                                                            Control1..1
                                                                            Typeuri
                                                                            Is Modifierfalse
                                                                            XML FormatIn the XML format, this property is represented as an attribute.
                                                                            Summaryfalse
                                                                            Fixed ValueimageRegion2D
                                                                            260. Extension.extension:instance.extension:imageRegion2D.value[x]
                                                                            Definition

                                                                            Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).

                                                                            ShortValue of extension
                                                                            Control0..1
                                                                            TypeChoice of: base64Binary, boolean, canonical, code, date, dateTime, decimal, id, instant, integer, markdown, oid, positiveInt, string, time, unsignedInt, uri, url, uuid, Address, Age, Annotation, Attachment, CodeableConcept, Coding, ContactPoint, Count, Distance, Duration, HumanName, Identifier, Money, Period, Quantity, Range, Ratio, Reference, SampledData, Signature, Timing, ContactDetail, Contributor, DataRequirement, Expression, ParameterDefinition, RelatedArtifact, TriggerDefinition, UsageContext, Dosage, Meta
                                                                            [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                                                                            Is Modifierfalse
                                                                            Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                                            Summaryfalse
                                                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                            262. Extension.extension:instance.extension:imageRegion3D
                                                                            Slice NameimageRegion3D
                                                                            Definition

                                                                            Each imaging selection might includes a 3D image region, specified by a region type and a set of 3D coordinates.

                                                                            ShortA specific 3D region in a DICOM frame of reference
                                                                            Comments

                                                                            There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                                            Control0..*
                                                                            TypeExtension
                                                                            Is Modifierfalse
                                                                            Summaryfalse
                                                                            Alternate Namesextensions, user content
                                                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                            ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                                            264. Extension.extension:instance.extension:imageRegion3D.id
                                                                            Definition

                                                                            Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                                                            ShortUnique id for inter-element referencing
                                                                            Control0..1
                                                                            Typeid
                                                                            Is Modifierfalse
                                                                            XML FormatIn the XML format, this property is represented as an attribute.
                                                                            Summaryfalse
                                                                            266. Extension.extension:instance.extension:imageRegion3D.extension
                                                                            Definition

                                                                            May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                                                            ShortAdditional content defined by implementations
                                                                            Comments

                                                                            There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                                            Control2..*
                                                                            TypeExtension
                                                                            Is Modifierfalse
                                                                            Summaryfalse
                                                                            Alternate Namesextensions, user content
                                                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                            ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                                            SlicingThis element introduces a set of slices on Extension.extension.extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                                                                            • value @ url
                                                                            • 268. Extension.extension:instance.extension:imageRegion3D.extension:regionType
                                                                              Slice NameregionType
                                                                              Definition

                                                                              Specifies the type of image region.

                                                                              Shortpoint | multipoint | polyline | polygon | ellipse | ellipsoid
                                                                              Comments

                                                                              There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                                              Control1..1
                                                                              TypeExtension
                                                                              Is Modifierfalse
                                                                              Summaryfalse
                                                                              Alternate Namesextensions, user content
                                                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                              ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                                              270. Extension.extension:instance.extension:imageRegion3D.extension:regionType.id
                                                                              Definition

                                                                              Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                                                              ShortUnique id for inter-element referencing
                                                                              Control0..1
                                                                              Typeid
                                                                              Is Modifierfalse
                                                                              XML FormatIn the XML format, this property is represented as an attribute.
                                                                              Summaryfalse
                                                                              272. Extension.extension:instance.extension:imageRegion3D.extension:regionType.extension
                                                                              Definition

                                                                              May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                                                              ShortAdditional content defined by implementations
                                                                              Comments

                                                                              There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                                              Control0..*
                                                                              TypeExtension
                                                                              Is Modifierfalse
                                                                              Summaryfalse
                                                                              Alternate Namesextensions, user content
                                                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                              ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                                              SlicingThis element introduces a set of slices on Extension.extension.extension.extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                                                                              • value @ url
                                                                              • 274. Extension.extension:instance.extension:imageRegion3D.extension:regionType.url
                                                                                Definition

                                                                                Source of the definition for the extension code - a logical name or a URL.

                                                                                Shortidentifies the meaning of the extension
                                                                                Comments

                                                                                The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.

                                                                                Control1..1
                                                                                Typeuri
                                                                                Is Modifierfalse
                                                                                XML FormatIn the XML format, this property is represented as an attribute.
                                                                                Summaryfalse
                                                                                Fixed ValueregionType
                                                                                276. Extension.extension:instance.extension:imageRegion3D.extension:regionType.value[x]
                                                                                Definition

                                                                                Specifies the type of image region.

                                                                                Shortpoint | multipoint | polyline | polygon | ellipse | ellipsoid
                                                                                Control0..1
                                                                                BindingThe codes SHALL be taken from Cross-version VS for R5.ImagingSelection3DGraphicType for use in FHIR R4
                                                                                (required to http://hl7.org/fhir/uv/xver/5.0/ValueSet/R5-imagingselection-3dgraphictype-for-R4)

                                                                                The type of image region.

                                                                                Typecode
                                                                                [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                                                                                Is Modifierfalse
                                                                                Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                                                Summaryfalse
                                                                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                278. Extension.extension:instance.extension:imageRegion3D.extension:coordinate
                                                                                Slice Namecoordinate
                                                                                Definition

                                                                                The coordinates describing the image region. Encoded as an ordered set of (x,y,z) triplets (in mm and may be negative) that define a region of interest in the patient-relative Reference Coordinate System defined by ImagingSelection.frameOfReferenceUid element.

                                                                                ShortSpecifies the coordinates that define the image region
                                                                                Comments

                                                                                There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                                                Control1..*
                                                                                TypeExtension
                                                                                Is Modifierfalse
                                                                                Summaryfalse
                                                                                Alternate Namesextensions, user content
                                                                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                                                280. Extension.extension:instance.extension:imageRegion3D.extension:coordinate.id
                                                                                Definition

                                                                                Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                                                                ShortUnique id for inter-element referencing
                                                                                Control0..1
                                                                                Typeid
                                                                                Is Modifierfalse
                                                                                XML FormatIn the XML format, this property is represented as an attribute.
                                                                                Summaryfalse
                                                                                282. Extension.extension:instance.extension:imageRegion3D.extension:coordinate.extension
                                                                                Definition

                                                                                May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                                                                ShortAdditional content defined by implementations
                                                                                Comments

                                                                                There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                                                Control0..*
                                                                                TypeExtension
                                                                                Is Modifierfalse
                                                                                Summaryfalse
                                                                                Alternate Namesextensions, user content
                                                                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                                                SlicingThis element introduces a set of slices on Extension.extension.extension.extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                                                                                • value @ url
                                                                                • 284. Extension.extension:instance.extension:imageRegion3D.extension:coordinate.url
                                                                                  Definition

                                                                                  Source of the definition for the extension code - a logical name or a URL.

                                                                                  Shortidentifies the meaning of the extension
                                                                                  Comments

                                                                                  The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.

                                                                                  Control1..1
                                                                                  Typeuri
                                                                                  Is Modifierfalse
                                                                                  XML FormatIn the XML format, this property is represented as an attribute.
                                                                                  Summaryfalse
                                                                                  Fixed Valuecoordinate
                                                                                  286. Extension.extension:instance.extension:imageRegion3D.extension:coordinate.value[x]
                                                                                  Definition

                                                                                  The coordinates describing the image region. Encoded as an ordered set of (x,y,z) triplets (in mm and may be negative) that define a region of interest in the patient-relative Reference Coordinate System defined by ImagingSelection.frameOfReferenceUid element.

                                                                                  ShortSpecifies the coordinates that define the image region
                                                                                  Control0..1
                                                                                  Typedecimal
                                                                                  [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                                                                                  Is Modifierfalse
                                                                                  Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                                                  Summaryfalse
                                                                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                  288. Extension.extension:instance.extension:imageRegion3D.url
                                                                                  Definition

                                                                                  Source of the definition for the extension code - a logical name or a URL.

                                                                                  Shortidentifies the meaning of the extension
                                                                                  Comments

                                                                                  The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.

                                                                                  Control1..1
                                                                                  Typeuri
                                                                                  Is Modifierfalse
                                                                                  XML FormatIn the XML format, this property is represented as an attribute.
                                                                                  Summaryfalse
                                                                                  Fixed ValueimageRegion3D
                                                                                  290. Extension.extension:instance.extension:imageRegion3D.value[x]
                                                                                  Definition

                                                                                  Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).

                                                                                  ShortValue of extension
                                                                                  Control0..1
                                                                                  TypeChoice of: base64Binary, boolean, canonical, code, date, dateTime, decimal, id, instant, integer, markdown, oid, positiveInt, string, time, unsignedInt, uri, url, uuid, Address, Age, Annotation, Attachment, CodeableConcept, Coding, ContactPoint, Count, Distance, Duration, HumanName, Identifier, Money, Period, Quantity, Range, Ratio, Reference, SampledData, Signature, Timing, ContactDetail, Contributor, DataRequirement, Expression, ParameterDefinition, RelatedArtifact, TriggerDefinition, UsageContext, Dosage, Meta
                                                                                  [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                                                                                  Is Modifierfalse
                                                                                  Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                                                  Summaryfalse
                                                                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                  292. Extension.extension:instance.url
                                                                                  Definition

                                                                                  Source of the definition for the extension code - a logical name or a URL.

                                                                                  Shortidentifies the meaning of the extension
                                                                                  Comments

                                                                                  The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.

                                                                                  Control1..1
                                                                                  Typeuri
                                                                                  Is Modifierfalse
                                                                                  XML FormatIn the XML format, this property is represented as an attribute.
                                                                                  Summaryfalse
                                                                                  Fixed Valueinstance
                                                                                  294. Extension.extension:instance.value[x]
                                                                                  Definition

                                                                                  Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).

                                                                                  ShortValue of extension
                                                                                  Control0..1
                                                                                  TypeChoice of: base64Binary, boolean, canonical, code, date, dateTime, decimal, id, instant, integer, markdown, oid, positiveInt, string, time, unsignedInt, uri, url, uuid, Address, Age, Annotation, Attachment, CodeableConcept, Coding, ContactPoint, Count, Distance, Duration, HumanName, Identifier, Money, Period, Quantity, Range, Ratio, Reference, SampledData, Signature, Timing, ContactDetail, Contributor, DataRequirement, Expression, ParameterDefinition, RelatedArtifact, TriggerDefinition, UsageContext, Dosage, Meta
                                                                                  [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                                                                                  Is Modifierfalse
                                                                                  Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                                                  Summaryfalse
                                                                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                  296. Extension.url
                                                                                  Definition

                                                                                  Source of the definition for the extension code - a logical name or a URL.

                                                                                  Shortidentifies the meaning of the extension
                                                                                  Comments

                                                                                  The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.

                                                                                  Control1..1
                                                                                  Typeuri
                                                                                  Is Modifierfalse
                                                                                  XML FormatIn the XML format, this property is represented as an attribute.
                                                                                  Summaryfalse
                                                                                  Fixed Valuehttp://hl7.org/fhir/5.0/StructureDefinition/extension-ImagingSelection
                                                                                  298. Extension.value[x]
                                                                                  Definition

                                                                                  Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).

                                                                                  ShortValue of extension
                                                                                  Control0..1
                                                                                  TypeChoice of: base64Binary, boolean, canonical, code, date, dateTime, decimal, id, instant, integer, markdown, oid, positiveInt, string, time, unsignedInt, uri, url, uuid, Address, Age, Annotation, Attachment, CodeableConcept, Coding, ContactPoint, Count, Distance, Duration, HumanName, Identifier, Money, Period, Quantity, Range, Ratio, Reference, SampledData, Signature, Timing, ContactDetail, Contributor, DataRequirement, Expression, ParameterDefinition, RelatedArtifact, TriggerDefinition, UsageContext, Dosage, Meta
                                                                                  [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                                                                                  Is Modifierfalse
                                                                                  Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                                                  Summaryfalse
                                                                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))