This page is part of the FHIR Specification (v3.0.2: STU 3). The current version which supercedes this version is 5.0.0.  For a full list of available versions, see the Directory of published versions  . Page versions: R4 R3
. Page versions: R4 R3
| (No assigned work group) | Maturity Level: N/A | Ballot Status: Informative | 
| Extensions: | |
| messageheader-response-request | messageheader-response-request : 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. |