description: This cross-version extension represents ActivityDefinition.timing[x] from http://hl7.org/fhir/StructureDefinition/ActivityDefinition|3.0.2 for use in FHIR R5.
package_name: hl7.fhir.uv.xver-r3.r5
derivation: constraint
name: ext_R3_ActivityDefinition_timing
type: Extension
elements:
  value:
    base: {path: 'Extension.value[x]'}
    short: When activity is to occur
    choices: [valueTiming, valueDateTime, valuePeriod, valueRange]
    index: 1
  valueTiming:
    base: {path: 'Extension.value[x]'}
    type: Timing
    short: When activity is to occur
    choiceOf: value
    index: 2
  valueDateTime:
    base: {path: 'Extension.value[x]'}
    type: dateTime
    short: When activity is to occur
    choiceOf: value
    index: 3
  valuePeriod:
    base: {path: 'Extension.value[x]'}
    type: Period
    short: When activity is to occur
    choiceOf: value
    index: 4
  valueRange:
    base: {path: 'Extension.value[x]'}
    type: Range
    short: When activity is to occur
    choiceOf: value
    index: 5
  url:
    pattern: {type: Uri, value: 'http://hl7.org/fhir/3.0/StructureDefinition/extension-ActivityDefinition.timing'}
    index: 6
package_version: 0.0.1-snapshot-1
class: extension
kind: complex-type
url: http://hl7.org/fhir/3.0/StructureDefinition/extension-ActivityDefinition.timing
base: http://hl7.org/fhir/StructureDefinition/Extension
version: 0.0.1-snapshot-1
required: [url]