This page is part of the FHIR Specification (v4.6.0: R5 Draft Ballot - see ballot notes). 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: R5 R4B
Infrastructure And Messaging   Work Group | Maturity Level: N/A | Standards 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.  |