description: This extension applies to the List resource and is used to represent a narrative description of the change to an item in a list entry. The narrative description may include the reason for the change to an item.
package_name: hl7.fhir.au.base
derivation: constraint
name: ChangeDescription
type: Extension
elements:
  url:
    pattern: {type: Uri, value: 'http://hl7.org.au/fhir/StructureDefinition/change-description'}
    index: 0
  value:
    choices: [valueString]
    index: 2
  valueString: {type: string, choiceOf: value, index: 3}
package_version: 4.2.1-preview
class: extension
kind: complex-type
url: http://hl7.org.au/fhir/StructureDefinition/change-description
base: http://hl7.org/fhir/StructureDefinition/Extension
version: 4.2.1-preview
required: [valueString, value]