description: This extension enables the capability currently available through MSH-16 (Application Level acknowledgement) in HL7 Version 2 to declare at a message instance level whether a response is required or only upon error or success, or never.
package_name: hl7.fhir.r5.examples
derivation: constraint
name: messageheader-response-request
type: Extension
elements:
  extension: {index: 0}
  url:
    pattern: {type: Uri, value: 'http://hl7.org/fhir/StructureDefinition/messageheader-response-request'}
    index: 1
  value:
    choices: [valueCode]
    index: 3
  valueCode: {type: code, choiceOf: value, index: 4}
package_version: 5.0.0-snapshot1
extensions: {}
class: extension
kind: complex-type
url: http://hl7.org/fhir/StructureDefinition/messageheader-response-request
base: http://hl7.org/fhir/StructureDefinition/Extension
version: 5.0.0-snapshot1
required: [valueCode, value]