description: This cross-version extension represents ActivityDefinition.subject[x] from http://hl7.org/fhir/StructureDefinition/ActivityDefinition|4.3.0 for use in FHIR R4.
package_name: hl7.fhir.uv.xver-r4b.r4
derivation: constraint
name: ext_R4B_ActivityDefinition_subject
type: Extension
elements:
  value:
    base: {path: 'Extension.value[x]'}
    short: Type of individual the activity definition is intended for
    choices: [valueCodeableConcept, valueReference, valueCanonical]
    index: 1
  valueCodeableConcept:
    base: {path: 'Extension.value[x]'}
    type: CodeableConcept
    short: Type of individual the activity definition is intended for
    choiceOf: value
    index: 2
  valueReference:
    short: Type of individual the activity definition is intended for
    refers: ['http://hl7.org/fhir/StructureDefinition/Group']
    type: Reference
    base: {path: 'Extension.value[x]'}
    choiceOf: value
    index: 3
  valueCanonical:
    base: {path: 'Extension.value[x]'}
    type: canonical
    short: Type of individual the activity definition is intended for
    choiceOf: value
    index: 4
  url:
    pattern: {type: uri, value: 'http://hl7.org/fhir/4.3/StructureDefinition/extension-ActivityDefinition.subject'}
    type: uri
    index: 5
package_version: 0.0.1-snapshot-1
class: extension
kind: complex-type
url: http://hl7.org/fhir/4.3/StructureDefinition/extension-ActivityDefinition.subject
base: http://hl7.org/fhir/StructureDefinition/Extension
version: 0.0.1-snapshot-1
required: [url]