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

## : Event (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="event"/>
      <text>
        <status value="generated"/>
        <div xmlns="http://www.w3.org/1999/xhtml"><ul><li>Include all codes defined in <a href="CodeSystem-event.html"><code>http://terminology.hl7.org/v2plusvocab/CodeSystem/event</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="0003"/>
      </extension>
      <url value="http://terminology.hl7.org/v2plusvocab/CodeSystem/event"/>
      <identifier>
        <system value="urn:ietf:rfc:3986"/>
        <value value="urn:oid:2.16.840.1.113883.18.4"/>
      </identifier>
      <version value="1.0.0"/>
      <name value="Event"/>
      <title value="Event (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 specifying the trigger event for Version 2.x interface messages.  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>
        <extension
                   url="http://hl7.org/fhir/StructureDefinition/codesystem-property-valueset">
          <valueCanonical
                          value="http://terminology.hl7.org/v2plusvocab/ValueSet/hl7VS354-1"/>
        </extension>
        <code value="msgstruct"/>
        <uri
             value="http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#msgstruct"/>
        <description value="msgstruct"/>
        <type value="code"/>
      </property>
      <property>
        <extension
                   url="http://hl7.org/fhir/StructureDefinition/codesystem-property-valueset">
          <valueCanonical
                          value="http://terminology.hl7.org/v2plusvocab/ValueSet/hl7VShl7VSmessageType"/>
        </extension>
        <code value="msgtype"/>
        <uri
             value="http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#msgtype"/>
        <description value="msgtype"/>
        <type value="code"/>
      </property>
      <concept id="13">
        <code value="A01"/>
        <display value="Admit a patient"/>
        <definition value="Admit a patient"/>
        <designation>
          <language value="de"/>
          <value value="Aufnahme"/>
        </designation>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.1"/>
        </property>
        <property>
          <code value="msgstruct"/>
          <valueCode value="?"/>
        </property>
      </concept>
      <concept id="14">
        <code value="A02"/>
        <display value="Transfer a Patient"/>
        <definition value="Transfer a Patient"/>
        <designation>
          <language value="de"/>
          <value value="Verlegung"/>
        </designation>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.1"/>
        </property>
        <property>
          <code value="msgstruct"/>
          <valueCode value="?"/>
        </property>
      </concept>
      <concept id="15">
        <code value="A03"/>
        <display value="Discharge a Patient"/>
        <definition value="Discharge a Patient"/>
        <designation>
          <language value="de"/>
          <value value="Entlassung"/>
        </designation>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.1"/>
        </property>
        <property>
          <code value="msgstruct"/>
          <valueCode value="?"/>
        </property>
      </concept>
      <concept id="16">
        <code value="A04"/>
        <display value="Register a Patient"/>
        <definition value="Register a Patient"/>
        <designation>
          <language value="de"/>
          <value value="Patientenregistrierung (Besuchsmeldung)"/>
        </designation>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.1"/>
        </property>
        <property>
          <code value="msgstruct"/>
          <valueCode value="?"/>
        </property>
      </concept>
      <concept id="17">
        <code value="A05"/>
        <display value="Pre-admit a Patient"/>
        <definition value="Pre-admit a Patient"/>
        <designation>
          <language value="de"/>
          <value value="Voraufnahme eines PAtienten"/>
        </designation>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.1"/>
        </property>
        <property>
          <code value="msgstruct"/>
          <valueCode value="?"/>
        </property>
      </concept>
      <concept id="18">
        <code value="A06"/>
        <display value="Transfer an outpatient to inpatient"/>
        <definition value="Transfer an outpatient to inpatient"/>
        <designation>
          <language value="de"/>
          <value value="Änderung von ambulant in stationär"/>
        </designation>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.1"/>
        </property>
        <property>
          <code value="msgstruct"/>
          <valueCode value="?"/>
        </property>
      </concept>
      <concept id="19">
        <code value="A07"/>
        <display value="Transfer an Inpatient to Outpatient"/>
        <definition value="Transfer an Inpatient to Outpatient"/>
        <designation>
          <language value="de"/>
          <value value="Änderung von stationär in ambulant"/>
        </designation>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.1"/>
        </property>
        <property>
          <code value="msgstruct"/>
          <valueCode value="?"/>
        </property>
      </concept>
      <concept id="20">
        <code value="A08"/>
        <display value="Update patient information"/>
        <definition value="Update patient information"/>
        <designation>
          <language value="de"/>
          <value value="Änderung von Patienteninformationen"/>
        </designation>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.1"/>
        </property>
        <property>
          <code value="msgstruct"/>
          <valueCode value="?"/>
        </property>
      </concept>
      <concept id="21">
        <code value="A09"/>
        <display value="Patient departing"/>
        <definition value="Patient departing"/>
        <designation>
          <language value="de"/>
          <value value="Patientenabgang"/>
        </designation>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.1"/>
        </property>
        <property>
          <code value="msgstruct"/>
          <valueCode value="?"/>
        </property>
      </concept>
      <concept id="22">
        <code value="A10"/>
        <display value="Patient arriving"/>
        <definition value="Patient arriving"/>
        <designation>
          <language value="de"/>
          <value value="Patientenzugang (Bettenzuweisung)"/>
        </designation>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.1"/>
        </property>
        <property>
          <code value="msgstruct"/>
          <valueCode value="?"/>
        </property>
      </concept>
      <concept id="23">
        <code value="A11"/>
        <display value="Cancel admit"/>
        <definition value="Cancel admit"/>
        <designation>
          <language value="de"/>
          <value value="Aufnahme löschen"/>
        </designation>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.1"/>
        </property>
        <property>
          <code value="msgstruct"/>
          <valueCode value="?"/>
        </property>
      </concept>
      <concept id="24">
        <code value="A12"/>
        <display value="Cancel transfer"/>
        <definition value="Cancel transfer"/>
        <designation>
          <language value="de"/>
          <value value="Verlegung löschen"/>
        </designation>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.1"/>
        </property>
        <property>
          <code value="msgstruct"/>
          <valueCode value="?"/>
        </property>
      </concept>
      <concept id="25">
        <code value="A13"/>
        <display value="Cancel discharge"/>
        <definition value="Cancel discharge"/>
        <designation>
          <language value="de"/>
          <value value="Entlassung löschen"/>
        </designation>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.1"/>
        </property>
        <property>
          <code value="msgstruct"/>
          <valueCode value="?"/>
        </property>
      </concept>
      <concept id="26">
        <code value="A14"/>
        <display value="Pending admit"/>
        <definition value="Pending admit"/>
        <designation>
          <language value="de"/>
          <value value="bevorstehende Aufnahme"/>
        </designation>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.1"/>
        </property>
        <property>
          <code value="msgstruct"/>
          <valueCode value="?"/>
        </property>
      </concept>
      <concept>
        <code value="A15"/>
        <display value="Pending transfer"/>
        <definition value="Pending transfer"/>
        <designation>
          <language value="de"/>
          <value value="Bevorstehende Verlegung"/>
        </designation>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.1"/>
        </property>
        <property>
          <code value="msgstruct"/>
          <valueCode value="?"/>
        </property>
      </concept>
      <concept id="28">
        <code value="A16"/>
        <display value="Pending discharge"/>
        <definition value="Pending discharge"/>
        <designation>
          <language value="de"/>
          <value value="bevorstehende Entlassung"/>
        </designation>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.1"/>
        </property>
        <property>
          <code value="msgstruct"/>
          <valueCode value="?"/>
        </property>
      </concept>
      <concept id="288">
        <code value="A17"/>
        <display value="Swap Patients"/>
        <definition value="Swap Patients"/>
        <designation>
          <language value="de"/>
          <value value="Bettentausch zweier Patienten"/>
        </designation>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.1"/>
        </property>
        <property>
          <code value="msgstruct"/>
          <valueCode value="?"/>
        </property>
      </concept>
      <concept id="289">
        <code value="A18"/>
        <display value="Merge patient information"/>
        <definition value="Merge patient information"/>
        <designation>
          <language value="de"/>
          <value value="Patienteninformation zusammenführen"/>
        </designation>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.1"/>
        </property>
        <property>
          <code value="msgstruct"/>
          <valueCode value="?"/>
        </property>
      </concept>
      <concept>
        <code value="A19"/>
        <display value="Patient query"/>
        <definition value="Patient query"/>
        <designation>
          <language value="de"/>
          <value value="Patientenanfrage"/>
        </designation>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.1"/>
        </property>
        <property>
          <code value="msgstruct"/>
          <valueCode value="?"/>
        </property>
      </concept>
      <concept id="358">
        <code value="A20"/>
        <display value="Bed status updates"/>
        <definition value="Bed status updates"/>
        <designation>
          <language value="de"/>
          <value value="Änderung des Bettenstatus"/>
        </designation>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.1"/>
        </property>
        <property>
          <code value="msgstruct"/>
          <valueCode value="?"/>
        </property>
      </concept>
      <concept id="359">
        <code value="A21"/>
        <display value="Leave of Absence - Out (leaving)"/>
        <definition value="Leave of Absence - Out (leaving)"/>
        <designation>
          <language value="de"/>
          <value value="Beginn einer Patientenabwesenheit"/>
        </designation>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.1"/>
        </property>
        <property>
          <code value="msgstruct"/>
          <valueCode value="?"/>
        </property>
      </concept>
      <concept id="360">
        <code value="A22"/>
        <display value="Leave of Absence - In (returning)"/>
        <definition value="Leave of Absence - In (returning)"/>
        <designation>
          <language value="de"/>
          <value value="Ende einer Patientenabwesenheit"/>
        </designation>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.1"/>
        </property>
        <property>
          <code value="msgstruct"/>
          <valueCode value="?"/>
        </property>
      </concept>
      <concept id="361">
        <code value="A23"/>
        <display value="Delete a Patient Record"/>
        <definition value="Delete a Patient Record"/>
        <designation>
          <language value="de"/>
          <value value="Löschen eines Patientensatzes"/>
        </designation>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.1"/>
        </property>
        <property>
          <code value="msgstruct"/>
          <valueCode value="?"/>
        </property>
      </concept>
      <concept id="363">
        <code value="A24"/>
        <display value="Link Patient Records"/>
        <definition value="Link Patient Records"/>
        <designation>
          <language value="de"/>
          <value value="Verknüpfen von Patienteninformationen"/>
        </designation>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.1"/>
        </property>
        <property>
          <code value="msgstruct"/>
          <valueCode value="?"/>
        </property>
      </concept>
      <concept>
        <code value="O01"/>
        <display value="Order message"/>
        <definition value="Order message"/>
        <designation>
          <language value="de"/>
          <value value="Auftrag / Verordnung"/>
        </designation>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.1"/>
        </property>
        <property>
          <code value="msgstruct"/>
          <valueCode value="?"/>
        </property>
      </concept>
      <concept id="541">
        <code value="O02"/>
        <display value="Order response"/>
        <definition value="Order response"/>
        <designation>
          <language value="de"/>
          <value value="Ergebnisrückmeldung"/>
        </designation>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.1"/>
        </property>
        <property>
          <code value="msgstruct"/>
          <valueCode value="?"/>
        </property>
      </concept>
      <concept id="533">
        <code value="P01"/>
        <display value="Add and update patient account"/>
        <definition value="Add and update patient account"/>
        <designation>
          <language value="de"/>
          <value value="Hinzufügen und Ändern von Abrechnungsinformationen"/>
        </designation>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.1"/>
        </property>
        <property>
          <code value="msgstruct"/>
          <valueCode value="?"/>
        </property>
      </concept>
      <concept>
        <code value="P02"/>
        <display value="Purge Patient Accounts"/>
        <definition value="Purge Patient Accounts"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.1"/>
        </property>
        <property>
          <code value="msgstruct"/>
          <valueCode value="?"/>
        </property>
      </concept>
      <concept id="535">
        <code value="P03"/>
        <display value="Post detail financial transaction"/>
        <definition value="Post detail financial transaction"/>
        <designation>
          <language value="de"/>
          <value value="Buchung"/>
        </designation>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.1"/>
        </property>
        <property>
          <code value="msgstruct"/>
          <valueCode value="?"/>
        </property>
      </concept>
      <concept id="536">
        <code value="P04"/>
        <display value="Generate bills and A/R statements"/>
        <definition value="Generate bills and A/R statements"/>
        <designation>
          <language value="de"/>
          <value value="Druck und Anzeige von Rechnungen"/>
        </designation>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.1"/>
        </property>
        <property>
          <code value="msgstruct"/>
          <valueCode value="?"/>
        </property>
      </concept>
      <concept>
        <code value="Q01"/>
        <display value="Immediate access"/>
        <definition value="Immediate access"/>
        <designation>
          <language value="de"/>
          <value value="Anfrage mit sofortiger Antwort"/>
        </designation>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.1"/>
        </property>
        <property>
          <code value="msgstruct"/>
          <valueCode value="?"/>
        </property>
      </concept>
      <concept id="543">
        <code value="Q02"/>
        <display value="Deferred Access"/>
        <definition value="Deferred Access"/>
        <designation>
          <language value="de"/>
          <value value="Anfrage mit Zeitversatz"/>
        </designation>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.1"/>
        </property>
        <property>
          <code value="msgstruct"/>
          <valueCode value="?"/>
        </property>
      </concept>
      <concept id="537">
        <code value="R01"/>
        <display value="Unsolicited transmission of requested Observ."/>
        <definition value="Unsolicited transmission of requested Observ."/>
        <designation>
          <language value="de"/>
          <value value="unangeforderte Übermittlung eines Befundes"/>
        </designation>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.1"/>
        </property>
        <property>
          <code value="msgstruct"/>
          <valueCode value="?"/>
        </property>
      </concept>
      <concept id="539">
        <code value="R03"/>
        <display value="Display oriented results, query/unsol. update"/>
        <definition value="Display oriented results, query/unsol. update"/>
        <designation>
          <language value="de"/>
          <value value="anzeigeorientiertes Ergebnis"/>
        </designation>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.1"/>
        </property>
        <property>
          <code value="msgstruct"/>
          <valueCode value="?"/>
        </property>
      </concept>
    </CodeSystem>