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

## : Message Type (2.1 - 1.0.0) - XML Representation

Active as of 2026-01-27

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    <CodeSystem xmlns="http://hl7.org/fhir">
      <id value="messageType"/>
      <text>
        <status value="generated"/>
        <div xmlns="http://www.w3.org/1999/xhtml"><ul><li>Include all codes defined in <a href="CodeSystem-messageType.html"><code>http://terminology.hl7.org/v2plusvocab/CodeSystem/messageType</code></a></li></ul></div>
      </text>
      <extension
                 url="http://terminology.hl7.org/v2plusvocab/StructureDefinition/codesystem-v2versionCreated">
        <valueString value="2.1"/>
      </extension>
      <extension
                 url="http://terminology.hl7.org/v2plusvocab/StructureDefinition/codesystem-versionHistory">
        <valueString value="generate correct history somehow"/>
      </extension>
      <extension
                 url="http://terminology.hl7.org/v2plusvocab/StructureDefinition/codesystem-tableNo">
        <valueString value="0076"/>
      </extension>
      <url value="http://terminology.hl7.org/v2plusvocab/CodeSystem/messageType"/>
      <identifier>
        <system value="urn:ietf:rfc:3986"/>
        <value value="urn:oid:2.16.840.1.113883.18.30"/>
      </identifier>
      <version value="1.0.0"/>
      <name value="MessageType"/>
      <title value="Message Type (2.1 - 1.0.0)"/>
      <status value="active"/>
      <experimental value="true"/>
      <date value="2026-01-27T19:20:25+00:00"/>
      <publisher value="HL7/FO"/>
      <contact>
        <name value="HL7/FO"/>
        <telecom>
          <system value="url"/>
          <value value="http://www.hl7.org"/>
        </telecom>
      </contact>
      <description
                   value="HL7-defined code system of concepts which specify message types.  Used in HL7 Version 2.x messaging in the MSH segment."/>
      <copyright value="HL7 Inc., 2026"/>
      <caseSensitive value="true"/>
      <compositional value="false"/>
      <content value="complete"/>
      <property>
        <code value="versionIntroduced"/>
        <uri
             value="http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#versionIntroduced"/>
        <description value="version when was this code introduced"/>
        <type value="string"/>
      </property>
      <property>
        <code value="versionDeprecated"/>
        <uri
             value="http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#versionDeprecated"/>
        <description value="version when was this code deprecated"/>
        <type value="string"/>
      </property>
      <property>
        <code value="status"/>
        <uri value="http://hl7.org/fhir/concept-properties#status"/>
        <description
                     value="A code that indicates the status of the concept. Typical values are active, experimental, deprecated, and retired"/>
        <type value="code"/>
      </property>
      <property>
        <code value="comment"/>
        <uri
             value="http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#comment"/>
        <description
                     value="A string that provides additional detail pertinent to the use or understanding of the concept"/>
        <type value="string"/>
      </property>
      <property>
        <code value="usage"/>
        <uri
             value="http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#usage"/>
        <description value="usage notes for this code"/>
        <type value="string"/>
      </property>
      <property>
        <code value="modified"/>
        <uri
             value="http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#modified"/>
        <description value="date of last modification"/>
        <type value="dateTime"/>
      </property>
      <property>
        <code value="chapter"/>
        <uri
             value="http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#chapter"/>
        <description value="chapter"/>
        <type value="string"/>
      </property>
      <property>
        <extension
                   url="http://hl7.org/fhir/StructureDefinition/codesystem-property-valueset">
          <valueCanonical
                          value="http://terminology.hl7.org/v2plusvocab/ValueSet/hl7VShl7VSevent"/>
        </extension>
        <code value="event"/>
        <uri
             value="http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#event"/>
        <description value="event"/>
        <type value="code"/>
      </property>
      <concept id="581">
        <code value="ACK"/>
        <display value="General Acknowledgment       CNT       II"/>
        <definition value="General Acknowledgment       CNT       II"/>
        <designation>
          <language value="de"/>
          <value value="Empfangsbestätigung"/>
        </designation>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.1"/>
        </property>
        <property>
          <code value="event"/>
          <valueCode value="A01"/>
        </property>
        <property>
          <code value="event"/>
          <valueCode value="A02"/>
        </property>
        <property>
          <code value="event"/>
          <valueCode value="A03"/>
        </property>
        <property>
          <code value="event"/>
          <valueCode value="A04"/>
        </property>
        <property>
          <code value="event"/>
          <valueCode value="A05"/>
        </property>
        <property>
          <code value="event"/>
          <valueCode value="A06"/>
        </property>
        <property>
          <code value="event"/>
          <valueCode value="A07"/>
        </property>
        <property>
          <code value="event"/>
          <valueCode value="A08"/>
        </property>
        <property>
          <code value="event"/>
          <valueCode value="A09"/>
        </property>
        <property>
          <code value="event"/>
          <valueCode value="A10"/>
        </property>
        <property>
          <code value="event"/>
          <valueCode value="A11"/>
        </property>
        <property>
          <code value="event"/>
          <valueCode value="A12"/>
        </property>
        <property>
          <code value="event"/>
          <valueCode value="A13"/>
        </property>
        <property>
          <code value="event"/>
          <valueCode value="A14"/>
        </property>
        <property>
          <code value="event"/>
          <valueCode value="A15"/>
        </property>
        <property>
          <code value="event"/>
          <valueCode value="A16"/>
        </property>
        <property>
          <code value="event"/>
          <valueCode value="A17"/>
        </property>
        <property>
          <code value="event"/>
          <valueCode value="A18"/>
        </property>
        <property>
          <code value="event"/>
          <valueCode value="A20"/>
        </property>
        <property>
          <code value="event"/>
          <valueCode value="A21"/>
        </property>
        <property>
          <code value="event"/>
          <valueCode value="A22"/>
        </property>
        <property>
          <code value="event"/>
          <valueCode value="A23"/>
        </property>
        <property>
          <code value="event"/>
          <valueCode value="A24"/>
        </property>
        <property>
          <code value="event"/>
          <valueCode value="O01"/>
        </property>
        <property>
          <code value="event"/>
          <valueCode value="O02"/>
        </property>
        <property>
          <code value="event"/>
          <valueCode value="P01"/>
        </property>
        <property>
          <code value="event"/>
          <valueCode value="P02"/>
        </property>
        <property>
          <code value="event"/>
          <valueCode value="P03"/>
        </property>
        <property>
          <code value="event"/>
          <valueCode value="Q03"/>
        </property>
        <property>
          <code value="event"/>
          <valueCode value="Q05"/>
        </property>
        <property>
          <code value="event"/>
          <valueCode value="R01"/>
        </property>
        <property>
          <code value="event"/>
          <valueCode value="R03"/>
        </property>
      </concept>
      <concept>
        <code value="ADR"/>
        <display value="ADT response"/>
        <definition value="ADT response"/>
        <designation>
          <language value="de"/>
          <value
                 value="Antwort auf Anfrage bezüglich Aufnahme / Verlegung / Entlassung von Patienten"/>
        </designation>
        <property>
          <code value="modified"/>
          <valueDateTime value="2024-08-12"/>
        </property>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.1"/>
        </property>
      </concept>
      <concept>
        <code value="ADT"/>
        <display value="ADT message"/>
        <definition value="ADT message"/>
        <designation>
          <language value="de"/>
          <value value="Aufnahme / Entlassung / Verlegung"/>
        </designation>
        <property>
          <code value="modified"/>
          <valueDateTime value="2024-08-12"/>
        </property>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.1"/>
        </property>
      </concept>
      <concept id="584">
        <code value="BAR"/>
        <display value="Add/change billing account   BLN       VI"/>
        <definition value="Add/change billing account   BLN       VI"/>
        <designation>
          <language value="de"/>
          <value value="Rechnungsänderung"/>
        </designation>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.1"/>
        </property>
        <property>
          <code value="event"/>
          <valueCode value="P01"/>
        </property>
        <property>
          <code value="event"/>
          <valueCode value="P02"/>
        </property>
      </concept>
      <concept id="586">
        <code value="DSR"/>
        <display value="Display response             QRY       V"/>
        <definition value="Display response             QRY       V"/>
        <designation>
          <language value="de"/>
          <value value="angezeigte Antwort"/>
        </designation>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.1"/>
        </property>
        <property>
          <code value="event"/>
          <valueCode value="P04"/>
        </property>
        <property>
          <code value="event"/>
          <valueCode value="Q01"/>
        </property>
        <property>
          <code value="event"/>
          <valueCode value="Q03"/>
        </property>
      </concept>
      <concept id="587">
        <code value="MCF"/>
        <display value="Delayed acknowledgment       CNT       II"/>
        <definition value="Delayed acknowledgment       CNT       II"/>
        <designation>
          <language value="de"/>
          <value value="verzögerte Empfangsbestätigung"/>
        </designation>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.1"/>
        </property>
        <property>
          <code value="event"/>
          <valueCode value="Q02"/>
        </property>
      </concept>
      <concept id="589">
        <code value="ORF"/>
        <display value="Observ. Result/record resp.  ANR       VII"/>
        <definition value="Observ. Result/record resp.  ANR       VII"/>
        <designation>
          <language value="de"/>
          <value value="Untersuchungsergebnisse"/>
        </designation>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.1"/>
        </property>
        <property>
          <code value="event"/>
          <valueCode value="R02"/>
        </property>
      </concept>
      <concept id="590">
        <code value="ORM"/>
        <display value="Order                        ORD       IV"/>
        <definition value="Order                        ORD       IV"/>
        <designation>
          <language value="de"/>
          <value value="Auftrag"/>
        </designation>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.1"/>
        </property>
        <property>
          <code value="event"/>
          <valueCode value="O01"/>
        </property>
      </concept>
      <concept id="591">
        <code value="ORR"/>
        <display value="Order response message       ORD       IV"/>
        <definition value="Order response message       ORD       IV"/>
        <designation>
          <language value="de"/>
          <value value="Auftragsantwort"/>
        </designation>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.1"/>
        </property>
        <property>
          <code value="event"/>
          <valueCode value="O02"/>
        </property>
      </concept>
      <concept id="592">
        <code value="ORU"/>
        <display value="Observ. result/unsolicited   ANR       VII"/>
        <definition value="Observ. result/unsolicited   ANR       VII"/>
        <designation>
          <language value="de"/>
          <value value="nicht angeforderte Beobachtungsergebnisse"/>
        </designation>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.1"/>
        </property>
        <property>
          <code value="event"/>
          <valueCode value="R01"/>
        </property>
        <property>
          <code value="event"/>
          <valueCode value="R03"/>
        </property>
      </concept>
      <concept id="593">
        <code value="OSQ"/>
        <display value="Order status query           ORD       IV"/>
        <definition value="Order status query           ORD       IV"/>
        <designation>
          <language value="de"/>
          <value value="Anfrage nach Auftragsstatus"/>
        </designation>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.1"/>
        </property>
      </concept>
      <concept id="595">
        <code value="UDM"/>
        <display value="Unsolicited display          QRY       V"/>
        <definition value="Unsolicited display          QRY       V"/>
        <designation>
          <language value="de"/>
          <value value="nicht angeforderte Anzeige"/>
        </designation>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.1"/>
        </property>
        <property>
          <code value="event"/>
          <valueCode value="Q05"/>
        </property>
      </concept>
    </CodeSystem>