HL7 v2.2 Vocabulary
0.1.0 - ci-build

HL7 v2.2 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.v22/ and changes regularly. See the Directory of published versions

## CodeSystem: Event (2.2 - 1.1.0) (Experimental)

Official URL: http://terminology.hl7.org/v2plusvocab/CodeSystem/event | Version: 1.1.0
Active as of 2026-01-27 | Computable Name: Event
Other Identifiers: OID:2.16.840.1.113883.18.4
Copyright/Legal: HL7 Inc., 2026

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.

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

- Hl7VSevent

Properties

This code system defines the following properties for its concepts

Name | Code | URI | Type | Description | Value 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 |
msgstruct | msgstruct | http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#msgstruct | code | msgstruct | `http://terminology.hl7.org/v2plusvocab/ValueSet/hl7VS354-2`
msgtype | msgtype | http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#msgtype | code | msgtype | `http://terminology.hl7.org/v2plusvocab/ValueSet/hl7VShl7VSmessageType`

Concepts

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

Code | Display | Definition | versionIntroduced | msgstruct | Deutsch (German, de)
A01 | Admit a patient | Admit a patient | 2.1 | ? | Neuaufnahme
A02 | Transfer a patient | Transfer a patient | 2.1 | ? | Verlegung
A03 | Discharge a patient | Discharge a patient | 2.1 | ? | Entlassung
A04 | Register a patient | Register a patient | 2.1 | ? | Patientenregistrierung (Besuchsmeldung)
A05 | Pre-admit a Patient | Pre-admit a Patient | 2.1 | ? | Voraufnahme eines Patienten
A06 | Transfer an outpatient to inpatient | Transfer an outpatient to inpatient | 2.1 | ? | Änderung von ambulant in stationär
A07 | Transfer an inpatient to outpatient | Transfer an inpatient to outpatient | 2.1 | ? | Änderung von stationär in ambulant
A08 | Update patient information | Update patient information | 2.1 | ? | Änderung von Patienteninformationen
A09 | Patient departing | Patient departing | 2.1 | ? | Patientenabgang (Bettenfreigabe)
A10 | Patient arriving | Patient arriving | 2.1 | ? | Patientenzugang (Bettenzuweisung)
A11 | Cancel admit | Cancel admit | 2.1 | ? | Stornierung einer Aufnahme
A12 | Cancel transfer | Cancel transfer | 2.1 | ? | Stornierung einer Verlegung
A13 | Cancel discharge | Cancel discharge | 2.1 | ? | Stornierung einer Entlassung
A14 | Pending admit | Pending admit | 2.1 | ? | Bevorstehende Aufnahme
A15 | Pending transfer | Pending transfer | 2.1 | ? | Bevorstehende Verlegung
A16 | Pending discharge | Pending discharge | 2.1 | ? | Bevorstehende Entlassung
A17 | Swap patients | Swap patients | 2.1 | ? | Bettentausch zweier Patienten
A18 | Merge patient information | Merge patient information | 2.1 | ? | Zusammenführung / Abgleich von Patienteninformation (veraltet; A34, A35 oder A36
A19 | Patient query | Patient query | 2.1 | ? | Patientenanfrage
A20 | Bed Status Update | Bed Status Update | 2.1 | ? | Änderung des Bettenstatus
A21 | Leave of absence - out (leaving) | Leave of absence - out (leaving) | 2.1 | ? | Beginn einer Patientenabwesenheit
A22 | Leave of absence - in (returning) | Leave of absence - in (returning) | 2.1 | ? | Ende einer Patientenabwesenheit
A23 | Delete a patient record | Delete a patient record | 2.1 | ? | Löschen eines Patientensatzes
A24 | Link patient information | Link patient information | 2.1 | ? | Verknüpfen von Patientendaten
A25 | Cancel pending discharge | Cancel pending discharge | 2.2 | ? | Stornierung einer eingeleiteten Entlassung
A26 | Cancel pending transfer | Cancel pending transfer | 2.2 | ? | Stornierung einer eingeleiteten Verlegung
A27 | Cancel pending admit | Cancel pending admit | 2.2 | ? | Stornierung einer eingeleiteten Aufnahme
A28 | Add person information | Add person information | 2.2 | ? | Ergänzung personenbezogener Daten
A29 | Delete person information | Delete person information | 2.2 | ? | Löschung von personenbezogenen Daten
A30 | Merge Patient information | Merge Patient information | 2.2 | ? | Abgleich personenbezogener Daten
A31 | Update person information | Update person information | 2.2 | ? | Ändern personenbezogener Daten
A32 | Cancel patient arriving | Cancel patient arriving | 2.2 | ? | Stornierung eines Patientenzugangs (Bettenzuweisung)
A33 | Cancel patient departing | Cancel patient departing | 2.2 | ? | Stornierung eines Patientenabgangs (Bettenfreigabe)
A34 | Merge patient information - patient ID only | Merge patient information - patient ID only | 2.2 | ? | Abgleich nur der Patientennummer
A35 | Merge patient information - account number only | Merge patient information - account number only | 2.2 | ? | Abgleich nur der Abrechnungsnummer / Debitorenkontonummer
A36 | Merge patient information - patient ID and account number | Merge patient information - patient ID and account number | 2.2 | ? | Abgleich von Patientennummer und Abrechnungsnummer / Debitorenkontonummer
A37 | Unlink patient information | Unlink patient information | 2.2 | ? | Auflösung einer Verknüpfung von Patientendaten
M01 | Master file not otherwise specified (for backwards compatibility only) | Master file not otherwise specified (for backwards compatibility only) | 2.2 | ? | Stammdatenänderung (veraltet)
M02 | Master file - Staff Practioner | Master file - Staff Practioner | 2.2 | ? | Stammdatenänderung - Ärzte
M03 | Master file - test / observation | Master file - test / observation | 2.2 | ? | Stammdatenänderung - Tests / Untersuchungen
O01 | Order message | Order message | 2.1 | ? | Auftrag / Verordnung
O02 | Order response | Order response | 2.1 | ? | Ergebnisrückmeldung
P01 | Add and Update Patient Accounts | Add and Update Patient Accounts | 2.1 | ? | Hinzufügen und Ändern von Abrechnungsinformationen
P02 | Purge Patient Accounts | Purge Patient Accounts | 2.1 | ? | Löschen von Abrechnungsinformationen
P03 | Post detail financial transaction | Post detail financial transaction | 2.1 | ? | Buchung
P04 | Generate bill and accounts receivable statements | Generate bill and accounts receivable statements | 2.1 | ? | Druck und Anzeige von Rechnungen
Q01 | Immediate access | Immediate access | 2.1 | ? | Anfrage mit sofortiger Antwort
Q02 | Deferred access | Deferred access | 2.1 | ? | Anfrage mit verzögerter Antwort
Q03 | Deferred response to query | Deferred response to query | 2.2 | ? | Verzögerte Antwort auf Anfrage
Q05 | Unsolicited display update | Unsolicited display update | 2.2 | ? | Sofortige Bildschirmanzeige (Eilmeldung)
R01 | Unsolicited transmission of requested observation | Unsolicited transmission of requested observation | 2.1 | ? | Unangeforderte Übermittlung eines Befundes
R02 | Query for results of observation | Query for results of observation | 2.2 | ? | Anfrage nach Untersuchungsergebnis
R03 | Display-oriented results (query / unsolicited update) | Display-oriented results (query / unsolicited update) | 2.1 | ? | Anzeigeorientiertes Ergebnis
R04 | Response to query / transmission of requested observation | Response to query / transmission of requested observation | 2.2 | ? | Antwort auf Anfrage / Übermittlung eines angeforderten Ergebnisses