HL7 v2.1 Vocabulary
0.1.0 - ci-build

HL7 v2.1 Vocabulary, published by HL7/FO. This guide is not an authorized publication; it is the continuous build for version 0.1.0 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/frankoemig/hl7.v2.terminology.v21/ and changes regularly. See the Directory of published versions

CodeSystem: Message Type (2.1 - 1.0.0) (Experimental)

Official URL: http://terminology.hl7.org/v2plusvocab/CodeSystem/messageType Version: 1.0.0
Active as of 2026-01-27 Computable Name: MessageType
Other Identifiers: OID:2.16.840.1.113883.18.30

Copyright/Legal: HL7 Inc., 2026

HL7-defined code system of concepts which specify message types. Used in HL7 Version 2.x messaging in the MSH segment.

This Code system is referenced in the content logical definition of the following value sets:

Properties

This code system defines the following properties for its concepts

NameCodeURITypeDescriptionValue Set
versionIntroduced versionIntroduced http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#versionIntroduced string version when was this code introduced
versionDeprecated versionDeprecated http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#versionDeprecated string version when was this code deprecated
status status http://hl7.org/fhir/concept-properties#status code A code that indicates the status of the concept. Typical values are active, experimental, deprecated, and retired
comment comment http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#comment string A string that provides additional detail pertinent to the use or understanding of the concept
usage usage http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#usage string usage notes for this code
modified modified http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#modified dateTime date of last modification
chapter chapter http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#chapter string chapter
event event http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#event code event http://terminology.hl7.org/v2plusvocab/ValueSet/hl7VShl7VSevent

Concepts

This case-sensitive code system http://terminology.hl7.org/v2plusvocab/CodeSystem/messageType defines the following codes:

CodeDisplayDefinitionversionIntroducedmodifiedeventDeutsch (German, de)
ACK General Acknowledgment CNT II General Acknowledgment CNT II 2.1 A01, A02, A03, A04, A05, A06, A07, A08, A09, A10, A11, A12, A13, A14, A15, A16, A17, A18, A20, A21, A22, A23, A24, O01, O02, P01, P02, P03, Q03, Q05, R01, R03 Empfangsbestätigung
ADR ADT response ADT response 2.1 2024-08-12 Antwort auf Anfrage bezüglich Aufnahme / Verlegung / Entlassung von Patienten
ADT ADT message ADT message 2.1 2024-08-12 Aufnahme / Entlassung / Verlegung
BAR Add/change billing account BLN VI Add/change billing account BLN VI 2.1 P01, P02 Rechnungsänderung
DSR Display response QRY V Display response QRY V 2.1 P04, Q01, Q03 angezeigte Antwort
MCF Delayed acknowledgment CNT II Delayed acknowledgment CNT II 2.1 Q02 verzögerte Empfangsbestätigung
ORF Observ. Result/record resp. ANR VII Observ. Result/record resp. ANR VII 2.1 R02 Untersuchungsergebnisse
ORM Order ORD IV Order ORD IV 2.1 O01 Auftrag
ORR Order response message ORD IV Order response message ORD IV 2.1 O02 Auftragsantwort
ORU Observ. result/unsolicited ANR VII Observ. result/unsolicited ANR VII 2.1 R01, R03 nicht angeforderte Beobachtungsergebnisse
OSQ Order status query ORD IV Order status query ORD IV 2.1 Anfrage nach Auftragsstatus
UDM Unsolicited display QRY V Unsolicited display QRY V 2.1 Q05 nicht angeforderte Anzeige