description: 'R4B: `ActivityDefinition.timing[x]` additional types (Timing, Age, Period, Range, Duration)'
package_name: hl7.fhir.uv.xver-r4b.r3
derivation: constraint
name: ExtensionActivityDefinition_Timing
type: Extension
elements:
  url:
    base: {max: '1', min: 1, path: Extension.url}
    pattern: {type: Uri, value: 'http://hl7.org/fhir/4.3/StructureDefinition/extension-ActivityDefinition.timing'}
    index: 0
  value:
    base: {max: '1', min: 0, path: 'Extension.value[x]'}
    short: When activity is to occur
    choices: [valueTiming, valueAge, valuePeriod, valueRange, valueDuration]
    index: 2
  valueTiming:
    short: When activity is to occur
    type: Timing
    base: {max: '1', min: 0, path: 'Extension.value[x]'}
    choiceOf: value
    index: 3
  valueAge:
    short: When activity is to occur
    type: Age
    base: {max: '1', min: 0, path: 'Extension.value[x]'}
    choiceOf: value
    index: 4
  valuePeriod:
    short: When activity is to occur
    type: Period
    base: {max: '1', min: 0, path: 'Extension.value[x]'}
    choiceOf: value
    index: 5
  valueRange:
    short: When activity is to occur
    type: Range
    base: {max: '1', min: 0, path: 'Extension.value[x]'}
    choiceOf: value
    index: 6
  valueDuration:
    short: When activity is to occur
    type: Duration
    base: {max: '1', min: 0, path: 'Extension.value[x]'}
    choiceOf: value
    index: 7
package_version: 0.1.0
class: extension
kind: complex-type
url: http://hl7.org/fhir/4.3/StructureDefinition/extension-ActivityDefinition.timing
base: http://hl7.org/fhir/StructureDefinition/Extension
version: 0.1.0
required: [url]