HL7 v2.3 Vocabulary
0.2.0 - ci-build

HL7 v2.3 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.v23/ and changes regularly. See the Directory of published versions

ValueSet: Event (2.3 - 1.2.0) (Experimental)

Official URL: http://terminology.hl7.org/v2plusvocab/ValueSet/hl7VSevent Version: 1.2.0
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 (2.3 - 1.2.0) v1.2.0 (CodeSystem)

This value set contains 182 concepts

SystemCodeDisplay (en)DefinitionJSONXML
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  A01ADT/ACK - Admit a patientADT/ACK - Admit a patient
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  A02ADT/ACK - Transfer a patientADT/ACK - Transfer a patient
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  A03ADT/ACK - Discharge a patientADT/ACK - Discharge a patient
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  A04ADT/ACK - Register a patientADT/ACK - Register a patient
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  A05ADT/ACK - Preadmit a patientADT/ACK - Preadmit a patient
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  A06ADT/ACK - Transfer an outpatient to inpatientADT/ACK - Transfer an outpatient to inpatient
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  A07ADT/ACK - Transfer an inpatient to outpatientADT/ACK - Transfer an inpatient to outpatient
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  A08ADT/ACK - Update patient informationADT/ACK - Update patient information
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  A09ADT/ACK - Patient departingADT/ACK - Patient departing
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  A10ADT/ACK - Patient arrivingADT/ACK - Patient arriving
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  A11ADT/ACK - Cancel admitADT/ACK - Cancel admit
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  A12ADT/ACK - Cancel transferADT/ACK - Cancel transfer
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  A13ADT/ACK - Cancel dischargeADT/ACK - Cancel discharge
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  A14ADT/ACK - Pending admitADT/ACK - Pending admit
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  A15ADT/ACK - Pending transferADT/ACK - Pending transfer
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  A16ADT/ACK - Pending dischargeADT/ACK - Pending discharge
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  A17ADT/ACK - Swap patientsADT/ACK - Swap patients
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  A18ADT/ACK - Merge patient informationADT/ACK - Merge patient information
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  A19QRY/ACK - Patient queryQRY/ACK - Patient query
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  A20ADT/ACK - Bed status updateADT/ACK - Bed status update
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  A21ADT/ACK - Leave of absence - out (leaving)ADT/ACK - Leave of absence - out (leaving)
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  A22ADT/ACK - Leave of absence - in (returning)ADT/ACK - Leave of absence - in (returning)
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  A23ADT/ACK - Delete a patient recordADT/ACK - Delete a patient record
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  A24ADT/ACK - Link patient informationADT/ACK - Link patient information
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  A25ADT/ACK - Cancel pending dischargeADT/ACK - Cancel pending discharge
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  A26ADT/ACK - Cancel pending transferADT/ACK - Cancel pending transfer
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  A27ADT/ACK - Cancel pending admitADT/ACK - Cancel pending admit
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  A28ADT/ACK - Add person informationADT/ACK - Add person information
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  A29ADT/ACK - Delete person informationADT/ACK - Delete person information
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  A30ADT/ACK - Merge person informationADT/ACK - Merge person information
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  A31ADT/ACK - Update person informationADT/ACK - Update person information
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  A32ADT/ACK - Cancel patient arrivingADT/ACK - Cancel patient arriving
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  A33ADT/ACK - Cancel patient departingADT/ACK - Cancel patient departing
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  A34ADT/ACK - Merge patient information - patient ID onlyADT/ACK - Merge patient information - patient ID only
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  A35ADT/ACK - Merge patient information - account number onlyADT/ACK - Merge patient information - account number only
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  A36ADT/ACK - Merge patient information - patient ID and account numberADT/ACK - Merge patient information - patient ID and account number
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  A37ADT/ACK - Unlink patient informationADT/ACK - Unlink patient information
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  A38ADT/ACK - Cancel pre-admitADT/ACK - Cancel pre-admit
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  A39ADT/ACK - Merge person - external IDADT/ACK - Merge person - external ID
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  A40ADT/ACK - Merge patient - internal IDADT/ACK - Merge patient - internal ID
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  A41ADT/ACK - Merge account - patient account numberADT/ACK - Merge account - patient account number
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  A42ADT/ACK - Merge visit - visit numberADT/ACK - Merge visit - visit number
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  A43ADT/ACK - Move patient information - internal IDADT/ACK - Move patient information - internal ID
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  A44ADT/ACK - Move account information - internal IDADT/ACK - Move account information - internal ID
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  A45ADT/ACK - Move visit information - visit numberADT/ACK - Move visit information - visit number
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  A46ADT/ACK - Change external IDADT/ACK - Change external ID
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  A47ADT/ACK - Change internal IDADT/ACK - Change internal ID
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  A48ADT/ACK - Change alternate patient IDADT/ACK - Change alternate patient ID
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  A49ADT/ACK - Change patient account numberADT/ACK - Change patient account number
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  A50ADT/ACK - Change visit numberADT/ACK - Change visit number
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  A51ADT/ACK - Change alternate visit IDADT/ACK - Change alternate visit ID
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  C01SRM - Register a patient on a clinical trialSRM - Register a patient on a clinical trial
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  C02SRM - Cancel a patient registration on clinical trial (for clerical mistakes only)SRM - Cancel a patient registration on clinical trial (for clerical mistakes only)
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  C03SRM - Correct/update registration informationSRM - Correct/update registration information
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  C04SRM - Patient has gone off a clinical trialSRM - Patient has gone off a clinical trial
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  C05SRM - Patient enters phase of clinical trialSRM - Patient enters phase of clinical trial
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  C06SRM - Cancel patient entering a phase (clerical mistake)SRM - Cancel patient entering a phase (clerical mistake)
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  C07SRM - Correct/update phase informationSRM - Correct/update phase information
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  C08SRM - Patient has gone off phase of clinical trialSRM - Patient has gone off phase of clinical trial
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  C09CSU - Automated time intervals for reporting, like monthlyCSU - Automated time intervals for reporting, like monthly
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  C10CSU - Patient completes the clinical trialCSU - Patient completes the clinical trial
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  C11CSU - Patient completes a phase of the clinical trialCSU - Patient completes a phase of the clinical trial
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  C12CSU - Update/correction of patient order/result informationCSU - Update/correction of patient order/result information
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  CNQQRY/EQQ/SPQ/VQQ/RQQ - Cancel queryQRY/EQQ/SPQ/VQQ/RQQ - Cancel query
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  I01RQI/RPI - Request for insurance informationRQI/RPI - Request for insurance information
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  I02RQI/RPL - Request/receipt of patient selection display listRQI/RPL - Request/receipt of patient selection display list
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  I03RQI/RPR - Request/receipt of patient selection listRQI/RPR - Request/receipt of patient selection list
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  I04RQD/RPI - Request for patient demographic dataRQD/RPI - Request for patient demographic data
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  I05RQC/RCI - Request for patient clinical informationRQC/RCI - Request for patient clinical information
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  I06RQC/RCL - Request/receipt of clinical data listingRQC/RCL - Request/receipt of clinical data listing
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  I07PIN/ACK - Unsolicited insurance informationPIN/ACK - Unsolicited insurance information
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  I08RQA/RPA - Request for treatment authorization informationRQA/RPA - Request for treatment authorization information
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  I09RQA/RPA - Request for modification to an authorizationRQA/RPA - Request for modification to an authorization
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  I10RQA/RPA - Request for resubmission of an authorizationRQA/RPA - Request for resubmission of an authorization
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  I11RQA/RPA - Request for cancellation of an authorizationRQA/RPA - Request for cancellation of an authorization
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  I12REF/RRI - Patient referralREF/RRI - Patient referral
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  I13REF/RRI - Modify patient referralREF/RRI - Modify patient referral
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  I14REF/RRI - Cancel patient referralREF/RRI - Cancel patient referral
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  I15REF/RRI - Request patient referral statusREF/RRI - Request patient referral status
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  M01MFN/MFK - Master file not otherwise specified (for backward compatibility only)MFN/MFK - Master file not otherwise specified (for backward compatibility only)
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  M02MFN/MFK - Master file - Staff PractionerMFN/MFK - Master file - Staff Practioner
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  M03MFN/MFK - Master file - Test/ObservationMFN/MFK - Master file - Test/Observation
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  M04MFD/ACK - Master files delayed application acknowledgementMFD/ACK - Master files delayed application acknowledgement
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  M05MFN/MFK - Patient location master fileMFN/MFK - Patient location master file
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  M06MFN/MFK - Charge description master fileMFN/MFK - Charge description master file
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  M07MFN/MFK - Clinical study without phases but with schedules master fileMFN/MFK - Clinical study without phases but with schedules master file
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  M08MFN/MFK - Test/Observation (Numeric) master fileMFN/MFK - Test/Observation (Nurmeric) master file
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  M09MFN/MFK - Test/Observation (Categorical) master fileMFN/MFK - Test/Observation (Categorical) master file
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  M10MFN/MFK - Test/Observation batteries master fileMFN/MFK - Test/Observation batteries master file
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  M11MFN/MFK - Test/calculated observation master fileMFN/MFK - Test/calculated observation master file
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  O01ORM - Order message (also RDE, RDS, RGV, RAS,ORM - Order message (also RDE, RDS, RGV, RAS,
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  O02ORR - Order response (also RRE, RRD, RRG, RRA,ORR - Order response (also RRE, RRD, RRG, RRA,
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  P01BAR/ACK - Add and update patient accountBAR/ACK - Add and update patient account
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  P02BAR/ACK - Purge patient accountBAR/ACK - Purge patient account
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  P03DFT/ACK - Post detail financial transactionDFT/ACK - Post detail financial transaction
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  P04QRY/DSP - Generate bill and A/R statementsQRY/DSP - Generate bill and A/R statements
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  P05BAR/ACK - Update accountBAR/ACK - Update account
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  P06BAR/ACK - End accountBAR/ACK - End account
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  P07PEX - Unsolicited initial individual product experience reportPEX - Unsolicited initial individual product experience report
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  P08PEX - Unsolicited update individual product experience reportPEX - Unsolicited update individual product experience report
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  P09SUR - Summary product experience reportSUR - Summary product experience report
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  PC1PPR - PC/Problem AddPPR - PC/Problem Add
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  PC2PPR - PC/Problem UpdatePPR - PC/Problem Update
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  PC3PPR - PC/Problem DeletePPR - PC/Problem Delete
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  PC4PPR - PC/Problem QueryPPR - PC/Problem Query
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  PC5PPR - PC/Problem ReponsePPR - PC/Problem Reponse
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  PC6PGL - PC/Goal AddPGL - PC/Goal Add
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  PC7PGL - PC/Goal UpdatePGL - PC/Goal Update
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  PC8PGL - PC/Goal DeletePGL - PC/Goal Delete
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  PC9PGL - PC/Goal QueryPGL - PC/Goal Query
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  PCAPGL - PC/Goal ResponsePGL - PC/Goal Response
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  PCBPPP - PC/Pathway (Problem Oriented) AddPPP - PC/Pathway (Problem Oriented) Add
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  PCCPPP - PC/Pathway (Problem Oriented) UpdatePPP - PC/Pathway (Problem Oriented) Update
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  PCDPPP - PC/Pathway (Problem Oriented) DeletePPP - PC/Pathway (Problem Oriented) Delete
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  PCEPPP - PC/Pathway (Problem Oriented) QueryPPP - PC/Pathway (Problem Oriented) Query
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  PCFPPP - PC/Pathway (Problem Oriented) Query ResponsePPP - PC/Pathway (Problem Oriented) Query Response
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  PCGPPP - PC/Pathway (Goal Oriented) AddPPP - PC/Pathway (Goal Oriented) Add
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  PCHPPP - PC/Pathway (Goal Oriented) UpdatePPP - PC/Pathway (Goal Oriented) Update
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  PCJPPP - PC/Pathway (Goal Oriented) DeletePPP - PC/Pathway (Goal Oriented) Delete
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  PCKPPP - PC/Pathway (Goal Oriented) QueryPPP - PC/Pathway (Goal Oriented) Query
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  PCLPPP - PC/Pathway (Goal Oriented) Query ResponsePPP - PC/Pathway (Goal Oriented) Query Response
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  Q01QRY/DSR - Query sent for immediate responseQRY/DSR - Query sent for immediate response
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  Q02QRY/ACK - Query sent for deferred responseQRY/ACK - Query sent for deferred response
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  Q03DSR/ACK - Deferred response to a queryDSR/ACK - Deferred response to a query
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  Q05UDM/ACK - Unsolicited display updateUDM/ACK - Unsolicited display update
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  Q06OSQ/OSR - Query for order statusOSQ/OSR - Query for order status
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  R01ORU/ACK - Unsolicited transmission of an observationORU/ACK - Unsolicited transmission of an observation
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  R02QRY - Query for results of observationQRY - Query for results of observation
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  R03Display-oriented results, query/unsol. update (for backward compatibility only)Display-oriented results, query/unsol. update (for backward compatibility only)
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  R04ORF - Response to query; transmission of requested observationORF - Response to query; transmission of requested observation
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  R05QRY/DSR- query für display resultsQRY/DSR- query für display results
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  R06UDM-unsolicited update/display resultsUDM-unsolicited update/display results
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  RARRAR - Pharmacy administration information query responseRAR - Pharmacy administration information query response
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  RDRRDR - Pharmacy dispense information query responseRDR - Pharmacy dispense information query response
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  RERRER - Pharmacy encoded order information query responseRER - Pharmacy encoded order information query response
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  RGRRGR - Pharmacy dose information query responseRGR - Pharmacy dose information query response
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  RORROR - Pharmacy prescription order query responseROR - Pharmacy prescription order query response
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  S01SRM/SRR - Request new appointment bookingSRM/SRR - Request new appointment booking
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  S02SRM/SRR - Request appointment reschedulingSRM/SRR - Request appointment rescheduling
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  S03SRM/SRR - Request appointment modificationSRM/SRR - Request appointment modification
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  S04SRM/SRR - Request appointment cancellationSRM/SRR - Request appointment cancellation
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  S05SRM/SRR - Request appointment discontinuationSRM/SRR - Request appointment discontinuation
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  S06SRM/SRR - Request appointment deletionSRM/SRR - Request appointment deletion
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  S07SRM/SRR - Request addition of service/resource on appointmentSRM/SRR - Request addition of service/resource on appointment
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  S08SRM/SRR - Request modification of service/resource on appointmentSRM/SRR - Request modification of service/resource on appointment
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  S09SRM/SRR - Request cancellation of servic/resource on appointmentSRM/SRR - Request cancellation of servic/resource on appointment
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  S10SRM/SRR - Request discontinuation of servic/resource on appointmentSRM/SRR - Request discontinuation of servic/resource on appointment
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  S11SRM/SRR - Request deletion of servic/resource on appointmentSRM/SRR - Request deletion of servic/resource on appointment
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  S12SIU/ACK - Notification of new appointment bookingSIU/ACK - Notification of new appointment booking
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  S13SIU/ACK - Notification of appointment reschedulingSIU/ACK - Notification of appointment rescheduling
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  S14SIU/ACK - Notification of appointment modificationSIU/ACK - Notification of appointment modification
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  S15SIU/ACK - Notification of appointment cancellationSIU/ACK - Notification of appointment cancellation
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  S16SIU/ACK - Notification of appointment discontinuationSIU/ACK - Notification of appointment discontinuation
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  S17SIU/ACK - Notification of appointmentdeletionSIU/ACK - Notification of appointmentdeletion
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  S18SIU/ACK - Notification of addition of service/resource on appointmentSIU/ACK - Notification of addition of service/resource on appointment
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  S19SIU/ACK - Notification ofmodification of service/resource on appointmentSIU/ACK - Notification ofmodification of service/resource on appointment
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  S20SIU/ACK - Notification of cancellation of service/resource on appointmentSIU/ACK - Notification of cancellation of service/resource on appointment
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  S21SIU/ACK - Notification of discontinuation of service/resource on appointmentSIU/ACK - Notification of discontinuation of service/resource on appointment
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  S22SIU/ACK - Notification of deletion of service/resource on appointmentSIU/ACK - Notification of deletion of service/resource on appointment
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  S23SIU/ACK - Notification of blocked schedule time slot(s)SIU/ACK - Notification of blocked schedule time slot(s)
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  S24SIU/ACK - Notification of open (“unblocked”) schedule time slot(s)SIU/ACK - Notification of open (“unblocked”) schedule time slot(s)
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  S25SQM/SQR - Query schedule informationSQM/SQR - Query schedule information
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  S26notification that patient did not show up for schedule appointmentnotification that patient did not show up for schedule appointment
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  T01MDM/ACK - Original document notificationMDM/ACK - Original document notification
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  T02MDM/ACK - Original document notification and contentMDM/ACK - Original document notification and content
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  T03MDM/ACK - Document status change notificationMDM/ACK - Document status change notification
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  T04MDM/ACK - Document status change notification and contentMDM/ACK - Document status change notification and content
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  T05MDM/ACK - Document addendum notificationMDM/ACK - Document addendum notification
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  T06MDM/ACK - Document addendum notification and contentMDM/ACK - Document addendum notification and content
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  T07MDM/ACK - Document replace notificationMDM/ACK - Document replace notification
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  T08MDM/ACK - Document replace notification and contentMDM/ACK - Document replace notification and content
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  T09MDM/ACK - Document cancel notificationMDM/ACK - Document cancel notification
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  T10MDM/ACK - Document replacement notification and contentMDM/ACK - Document replacement notification and content
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  T11MDM/ACK - Document cancel notificationMDM/ACK - Document cancel notification
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  T12QRY/DOC - Document queryQRY/DOC - Document query
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  V01VXQ - Query for vaccination recordVXQ - Query for vaccination record
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  V02VXX - Response to vaccination query returning multiple PID matchesVXX - Response to vaccination query returning multiple PID matches
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  V03VXR - Vaccination record responseVXR - Vaccination record response
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  V04VXU - Unsolicited vaccination record updateVXU - Unsolicited vaccination record update
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  W01ORU - Waveform result, unsolicited transmission of requested informationORU - Waveform result, unsolicited transmission of requested information
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  W02QRF - Waveform result, response to queryQRF - Waveform result, response to query
http://terminology.hl7.org/v2plusvocab/CodeSystem/event  X01PEX - Product experiencePEX - Product experience

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