description: The date  (and optionally time) when the {{title}} was published. The date must change when the business version changes and it must change if the status code changes. In addition, it should change when the substantive content of the {{title}} changes.
package_name: hl7.fhir.r5.core
derivation: constraint
name: date
type: Extension
elements:
  extension: {index: 0}
  url:
    pattern: {type: Uri, value: 'http://hl7.org/fhir/StructureDefinition/artifact-date'}
    index: 1
  value:
    choices: [valueDateTime]
    index: 3
  valueDateTime: {type: dateTime, choiceOf: value, index: 4}
package_version: 5.0.0-snapshot2
extensions: {}
class: extension
kind: complex-type
url: http://hl7.org/fhir/StructureDefinition/artifact-date
base: http://hl7.org/fhir/StructureDefinition/Extension
version: 4.6.0
required: [valueDateTime, value]