A code identifying the specific message to be provided.
\nA textual value may be specified as the print name, or for non-coded messages, as the original text.Discussion:
\n'Required attribute xxx is missing', 'System will be unavailable March 19 from 0100 to 0300'Examples:
\nhttp://terminology.hl7.org/CodeSystem/v3-AcknowledgementDetailType