description: 'STU3: `Task.definition[x]` (new:Reference(ActivityDefinition), uri)'
package_name: hl7.fhir.uv.xver-r3.r4
derivation: constraint
name: ExtensionTask_Definition
type: Extension
elements:
  url:
    base: {max: '1', min: 1, path: Extension.url}
    pattern: {type: Uri, value: 'http://hl7.org/fhir/3.0/StructureDefinition/extension-Task.definition'}
    index: 0
  value:
    base: {max: '1', min: 0, path: 'Extension.value[x]'}
    short: Formal definition of task
    choices: [valueUri, valueReference]
    index: 2
  valueUri:
    short: Formal definition of task
    type: uri
    base: {max: '1', min: 0, path: 'Extension.value[x]'}
    choiceOf: value
    index: 3
  valueReference:
    short: Formal definition of task
    refers: ['http://hl7.org/fhir/3.0/StructureDefinition/profile-ActivityDefinition|0.1.0', 'http://hl7.org/fhir/StructureDefinition/ActivityDefinition|4.0.1']
    type: Reference
    base: {max: '1', min: 0, path: 'Extension.value[x]'}
    choiceOf: value
    index: 4
package_version: 0.1.0
class: extension
kind: complex-type
url: http://hl7.org/fhir/3.0/StructureDefinition/extension-Task.definition
base: http://hl7.org/fhir/StructureDefinition/Extension|4.0.1
version: 0.1.0
required: [url]