http://hl7.org/fhir/StructureDefinition/data-absent-reason|5.2.0

Provides a reason why the expected value or elements in the element that is extended are missing.
description: Provides a reason why the expected value or elements in the element that is extended are missing.
derivation: constraint
name: DataAbsentReason
type: Extension
elements:
  extension: {index: 0}
  url:
    pattern: {type: Uri, value: 'http://hl7.org/fhir/StructureDefinition/data-absent-reason'}
    index: 1
  value:
    choices: []
    index: 3
extensions: {}
class: extension
kind: complex-type
url: http://hl7.org/fhir/StructureDefinition/data-absent-reason
base: http://hl7.org/fhir/StructureDefinition/Extension
version: 5.2.0
required: [value]