HL7 v2.1 Vocabulary
0.2.0 - ci-build

HL7 v2.1 Vocabulary, published by HL7/FO. This guide is not an authorized publication; it is the continuous build for version 0.2.0 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

ValueSet: Event (2.1 - 1.0.0) (Experimental)

Official URL: http://terminology.hl7.org/v2plusvocab/ValueSet/hl7VSevent Version: 1.0.0
Active as of 2026-03-13 Computable Name: Hl7VSevent
Other Identifiers: OID:2.16.840.1.113883.21.4, urn:ietf:rfc:3986#Uniform Resource Identifier (URI)#http://terminology.hl7.org/v2plusvocab/ValueSet/v2-0003

Copyright/Legal: HL7 Inc., 2026

Concepts specifying the trigger event for Version 2.x interface messages.

References

This value set is not used here; it may be used elsewhere (e.g. specifications and/or implementations that use this content)

Logical Definition (CLD)

 

Expansion

Expansion performed internally based on codesystem Event (2.1 - 1.0.0) v1.0.0 (CodeSystem)

This value set contains 34 concepts

SystemCodeDisplay (en)DefinitionJSONXML
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  A01Admit a patientAdmit a patient
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  A02Transfer a PatientTransfer a Patient
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  A03Discharge a PatientDischarge a Patient
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  A04Register a PatientRegister a Patient
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  A05Pre-admit a PatientPre-admit a Patient
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  A06Transfer an outpatient to inpatientTransfer an outpatient to inpatient
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  A07Transfer an Inpatient to OutpatientTransfer an Inpatient to Outpatient
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  A08Update patient informationUpdate patient information
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  A09Patient departingPatient departing
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  A10Patient arrivingPatient arriving
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  A11Cancel admitCancel admit
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  A12Cancel transferCancel transfer
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  A13Cancel dischargeCancel discharge
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  A14Pending admitPending admit
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  A15Pending transferPending transfer
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  A16Pending dischargePending discharge
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  A17Swap PatientsSwap Patients
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  A18Merge patient informationMerge patient information
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  A19Patient queryPatient query
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  A20Bed status updatesBed status updates
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  A21Leave of Absence - Out (leaving)Leave of Absence - Out (leaving)
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  A22Leave of Absence - In (returning)Leave of Absence - In (returning)
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  A23Delete a Patient RecordDelete a Patient Record
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  A24Link Patient RecordsLink Patient Records
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  O01Order messageOrder message
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  O02Order responseOrder response
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  P01Add and update patient accountAdd and update patient account
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  P02Purge Patient AccountsPurge Patient Accounts
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  P03Post detail financial transactionPost detail financial transaction
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  P04Generate bills and A/R statementsGenerate bills and A/R statements
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  Q01Immediate accessImmediate access
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  Q02Deferred AccessDeferred Access
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  R01Unsolicited transmission of requested Observ.Unsolicited transmission of requested Observ.
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  R03Display oriented results, query/unsol. updateDisplay oriented results, query/unsol. update

Explanation of the columns that may appear on this page:

Level A few code lists that FHIR defines are hierarchical - each code is assigned a level. In this scheme, some codes are under other codes, and imply that the code they are under also applies
System The source of the definition of the code (when the value set draws in codes defined elsewhere)
Code The code (used as the code in the resource instance)
Display The display (used in the display element of a Coding). If there is no display, implementers should not simply display the code, but map the concept into their application
Definition An explanation of the meaning of the concept
Comments Additional notes about how to use the code