# text.div
This code system http://hl7.org/fhir/messageheader-response-request defines the following codes:

Code | Display | Definition
always | Always | initiator expects a response for this message.
on-error | Error/reject conditions only | initiator expects a response only if in error.
never | Never | initiator does not expect a response.
on-success | Successful completion only | initiator expects a response only if successful.

# description
HL7-defined table of codes which identify conditions under which acknowledgments are required to be returned in response to a message.

# concept[].definition
initiator expects a response for this message.

# concept[].definition
initiator expects a response only if in error.

# concept[].definition
initiator expects a response only if successful.