Events
56 trigger events in HL7 v2.2
§2.16.2 Event Type Table:Trigger events represent real-world occurrences that initiate HL7 message exchange. Each event (e.g., A01 for patient admission, O01 for new order) defines when a specific message type should be sent and what information it should contain.
ADT^A01
Admit a Patient
ADT_A01
ADT^A02
Transfer a patient
ADT_A02
ADT^A03
Discharge a patient
ADT_A03
ADT^A04
Register a Patient
ADT_A04
ADT^A05
Pre-admit a Patient
ADT_A05
ADT^A06
Transfer an Outpatient to Inpatient
ADT_A06
ADT^A07
Transfer an Inpatient to Outpatient
ADT_A07
ADT^A08
Update Patient Information
ADT_A08
ADT^A09
Patient Departing
ADT_A09
ADT^A10
Patient Arriving
ADT_A10
ADT^A11
Cancel Admit
ADT_A11
ADT^A12
Cancel Transfer
ADT_A12
ADT^A13
Cancel Discharge
ADT_A13
ADT^A14
Pending Admit
ADT_A14
ADT^A15
Pending Transfer
ADT_A15
ADT^A16
Pending Discharge
ADT_A16
ADT^A17
Swap Patients
ADT_A17
ADT^A18
Merge Patient Information
ADT_A18
QRY^A19
Patient Query
QRY_A19
ADT^A20
Bed Status Update
ADT_A20
ADT^A21
A Patient Goes On A "Leave Of Absence"
ADT_A21
ADT^A22
A Patient Returns From A "Leave Of Absence"
ADT_A22
ADT^A23
Delete a Patient Record
ADT_A23
ADT^A24
Link Patient Information
ADT_A24
ADT^A25
Cancel Pending Discharge
ADT_A25
ADT^A26
Cancel Pending Transfer
ADT_A26
ADT^A27
Cancel Pending Admit
ADT_A27
ADT^A28
Add person information
ADT_A28
ADT^A29
Delete person information
ADT_A29
ADT^A30
Merge Patient information
ADT_A30
ADT^A31
Update person information
ADT_A31
ADT^A32
Cancel patient arriving
ADT_A32
ADT^A33
Cancel patient departing
ADT_A33
ADT^A34
Merge patient information - patient ID only
ADT_A34
ADT^A35
Merge patient information - account number only
ADT_A35
ADT^A36
Merge patient information - pat ID and account number
ADT_A36
ADT^A37
unlink patient information
ADT_A37
MFN^M01
Master files change not otherwise specified (for backwards comp.)
MFN_M01
MFN^M02
Master files change - Staff Practitioneer
MFN_M02
MFN^M03
Master files change - Test/Observation
MFN_M03
NMD^N01
Network Management Data
NMD_N01
NMQ^N02
Network Management Query
NMQ_N02
ORM^O01
Order Message
ORM_O01
ORR^O02
Response Message
ORR_O02
BAR^P01
Add and Update Patient Accounts
BAR_P01
BAR^P02
Purge Patient Accounts
BAR_P02
DFT^P03
Post Detail Financial Transactions
DFT_P03
QRY^P04
Generate bills and A/R statements
QRY_P04
QRY^Q01
A Query is made for immediate Display Response
QRY_Q01
QRY^Q02
A Query is Sent for Deferred Response
QRY_Q02
DSR^Q03
Deferred Response to A Query
DSR_Q03
UDM^Q05
Unsolicited Display Update Message
UDM_Q05
ORU^R01
Unsolicited Transmission Of Requested Information
ORU_R01
QRY^R02
Query for results of observation
QRY_R02
DSR^R03
Display-oriented results, query/unsol. update
DSR_R03
ORF^R04
Response to query; transmission of requested observation
ORF_R04