description: This cross-version extension represents ActivityDefinition.asNeeded[x] from http://hl7.org/fhir/StructureDefinition/ActivityDefinition|5.0.0 for use in FHIR R4B.
package_name: hl7.fhir.uv.xver-r5.r4b
derivation: constraint
name: Ext_R5_ActivityDefinition_asNeeded
type: Extension
elements:
  url:
    base: {max: '1', min: 1, path: Extension.url}
    pattern: {type: Uri, value: 'http://hl7.org/fhir/5.0/StructureDefinition/extension-ActivityDefinition.asNeeded'}
    index: 0
  value:
    base: {max: '1', min: 0, path: 'Extension.value[x]'}
    short: Preconditions for service
    choices: [valueBoolean, valueCodeableConcept]
    index: 2
  valueBoolean:
    base: {max: '1', min: 0, path: 'Extension.value[x]'}
    type: boolean
    short: Preconditions for service
    choiceOf: value
    index: 3
  valueCodeableConcept:
    base: {max: '1', min: 0, path: 'Extension.value[x]'}
    type: CodeableConcept
    short: Preconditions for service
    choiceOf: value
    index: 4
package_version: 0.0.1-snapshot-2
class: extension
kind: complex-type
url: http://hl7.org/fhir/5.0/StructureDefinition/extension-ActivityDefinition.asNeeded
base: http://hl7.org/fhir/StructureDefinition/Extension|4.3.0
version: 0.0.1-snapshot-2
required: [url]