Message Structures
186 structures in HL7 v2.4
§2.5.1 Messages:Message structures define the ordered sequence of segments that make up a complete HL7 message. Each structure specifies which segments are required, optional, or repeating, and how they nest into segment groups for complex data relationships.
ACK
Standard Acknowlegdement
3 segments•126 events
ACK_N02
2 segments
2 segments•1 event
ACK_Q03
5.10.3.2 DSR/ACK - Deferred Response to a Query (event Q03)
3 segments
ACK_Q05
5.10.1.2 UDM/ACK - Unsolicited Display Update Message (event Q05)
3 segments
ACK_Q16
5.4.4 QSB - Create Subscription (event Q16)
3 segments
ACK_Q17
5.4.5 QVR - Query for Previous Events (event Q17)
3 segments
ACK_R01
7.3.1 ORU - Unsolicited Observation Message (event R01)
2 segments
ADR_A19
30 segments
30 segments•1 event
ADT_A01
General
25 segments•4 events
ADT_A02
Transfer
11 segments•1 event
ADT_A03
Discharge
15 segments•1 event
ADT_A05
24 segments
24 segments•4 events
ADT_A06
25 segments
25 segments•2 events
ADT_A09
Track/Cancel
9 segments•4 events
ADT_A15
11 segments
11 segments•1 event
ADT_A16
Pending Discharge
12 segments•1 event
ADT_A17
Swap
14 segments•1 event
ADT_A18
6 segments
6 segments•1 event
ADT_A20
3 segments
3 segments•1 event
ADT_A21
8 segments
8 segments•9 events
ADT_A24
Link Patient Information
10 segments•1 event
ADT_A30
5 segments
5 segments•8 events
ADT_A37
10 segments
10 segments•1 event
ADT_A38
Swap (2)
10 segments•1 event
ADT_A39
6 segments
6 segments•4 events
ADT_A43
5 segments
5 segments•2 events
ADT_A45
6 segments
6 segments•1 event
ADT_A50
6 segments
6 segments•2 events
ADT_A52
6 segments
6 segments•3 events
ADT_A54
8 segments
8 segments•1 event
ADT_A60
6 segments
6 segments•1 event
ADT_A61
7 segments
7 segments•2 events
BAR_P01
Open Account
24 segments•1 event
BAR_P02
Purge Billing Account
6 segments•1 event
BAR_P05
Update Billing Account
27 segments•1 event
BAR_P06
End Billing Account
4 segments•1 event
BAR_P10
Transmit Ambulatory Payment Classification (APC) Groups
8 segments•1 event
CRM_C01
Clinical Trial Message
5 segments•8 events
CSU_C09
Clinical Trial Message
15 segments•4 events
DFT_P03
6.4.3 DFT/ACK - Post Detail Financial Transactions (event P03)
30 segments•1 event
DFT_P11
6.4.3 DFT/ACK - Post Detail Financial Transactions (event P03)
37 segments•1 event
DOC_T12
11 segments
11 segments•1 event
DSR_P04
0 segments
0 segments•1 event
DSR_Q01
8 segments
8 segments•1 event
DSR_Q03
8 segments
8 segments•1 event
EAC_U07
Equipment Command Message
6 segments•1 event
EAN_U09
Equipment Status Message
5 segments•1 event
EAR_U08
Equipment Command Message
6 segments•1 event
EDR_R07
6 segments
6 segments•1 event
EQQ_Q04
3 segments
3 segments•1 event
ERP_R09
6 segments
6 segments•1 event
ESR_U02
Equipment Status Message
3 segments•1 event
ESU_U01
Equipment Status Message
4 segments•1 event
INR_U06
Inventory Request Message
4 segments•1 event
INU_U05
Inventory Update Message
4 segments•1 event
LSU_U12
Equipment Log/Service Message
4 segments•2 events
MDM_T01
5 segments
5 segments•6 events
MDM_T02
6 segments
6 segments•5 events
MFK_M01
Master File Acknowledgment
5 segments•6 events
MFN_M01
4 segments
4 segments•1 event
MFN_M02
Master File Notification for Staff/Practitioner
6 segments•1 event
MFN_M03
5 segments
5 segments•1 event
MFN_M04
Master File Notification - Charge Description
5 segments•1 event
MFN_M05
Master File Notification - Patient Location
9 segments•1 event
MFN_M06
Master File Notification - Clinical Study With Phases and Schedules
6 segments•1 event
MFN_M07
Master File Notification - Clinical Study Without
5 segments•1 event
MFN_M08
Master File Notification - Test/Observation (Numeric)
7 segments•1 event
MFN_M09
Master File Notification - Test/Observation (Categorical)
6 segments•1 event
MFN_M10
Master File Notification - Test/Observation Batteries
6 segments•1 event
MFN_M11
Master File Notification - Test/Calculated Observations
6 segments•1 event
MFN_M12
Master File Notification - Additional Basic Observation/Service Attributes
5 segments•1 event
MFQ_M01
4 segments
4 segments•6 events
MFR_M01
10 segments
10 segments•6 events
NMD_N02
Application Management Data
7 segments•1 event
NMQ_N01
6 segments
6 segments•1 event
NMR_N01
Application Management Response Message
10 segments•1 event
OMD_O03
Dietary Order
20 segments•1 event
OMG_O19
General Clinical Order Message
33 segments•1 event
OML_O21
Laboratory Order Message
37 segments•1 event
OMN_O07
Nonstock Requisition Order Message
19 segments•1 event
OMP_O09
Pharmacy/Treatment Order Message
22 segments•1 event
OMS_O05
Stock Requisition Order Message
19 segments•1 event
ORD_O04
Dietary Order Acknowledgment Message
12 segments•1 event
ORF_R04
16 segments
16 segments•1 event
ORG_O20
General Clinical Order Acknowledgment Message
10 segments•1 event
ORL_O22
General Laboratory Order Acknowledgment Message
10 segments•1 event
ORM_O01
General Order Message
27 segments•1 event
ORN_O08
General Order Acknowledgment Message
10 segments•1 event
ORP_O10
12 segments
12 segments•1 event
ORR_O02
General Order Response
15 segments•1 event
ORS_O06
Stock Order Acknowledgment Message
10 segments•1 event
ORU_R01
Observation Message
16 segments•1 event
OSQ_Q06
4 segments
4 segments•1 event
OSR_Q06
6 segments
6 segments•1 event
OUL_R21
19 segments
19 segments•1 event
PEX_P07
Product Experience Message
26 segments•2 events
PGL_PC6
Patient Goal Message
28 segments•3 events
PMU_B01
Personnel Record Message
8 segments•2 events
PMU_B03
Delete Personnel Record Message
3 segments•1 event
PMU_B04
Terminate Practicing Person Message
5 segments•3 events
PPG_PCG
Patient Pathway Goal-Oriented Message
31 segments•3 events
PPP_PCB
Patient Pathway Problem-Oriented Message
31 segments•3 events
PPR_PC1
Patient Problem Message
28 segments•3 events
PPT_PCL
Patient Pathway Goal-Oriented Response
35 segments•1 event
PPV_PCA
Goal Query Response
32 segments•1 event
PRR_PC5
Problem Query Response
32 segments•1 event
PTR_PCF
Patient Pathway Problem-Oriented Response
35 segments•1 event
QBP_K13
8 segments
8 segments
QBP_Q11
QBP - Query by Parameter Requesting an RSP Segment Pattern Response
4 segments•5 events
QBP_Q13
QBP - Query by Parameter Requesting an RTB - Tabular Response
6 segments•7 events
QBP_Q15
QBP - Query by Parameter Requesting an RDY Display Response
5 segments•3 events
QBP_Q21
Query Personnel Information Message
4 segments•5 events
QBP_Qnn
5 segments
5 segments
QBP_Z73
3 segments
3 segments•1 event
QCK_Q02
4 segments
4 segments•1 event
QCN_J01
Cancel Subscription
2 segments•2 events
QRY_A19
3 segments
3 segments•1 event
QRY_P04
0 segments
0 segments•1 event
QRY_PC4
3 segments
3 segments•4 events
QRY_Q01
4 segments
4 segments•6 events
QRY_Q02
4 segments
4 segments•1 event
QRY_R02
3 segments
3 segments•1 event
QRY_T12
3 segments
3 segments•1 event
QSB_Q16
QSB - Create Subscription
4 segments•2 events
QVR_Q17
Query for Previous Events
5 segments•1 event
RAR_RAR
14 segments
14 segments•1 event
RAS_O17
Pharmacy/Treatment Administration
22 segments•1 event
RCI_I05
Return Clinical Information
15 segments•1 event
RCL_I06
Return Clinical List
13 segments•1 event
RDE_O11
Pharmacy/Treatment Refill Authorization Request
24 segments•1 event
RDR_RDR
Pharmacy/Treatment Dispense Information
15 segments•1 event
RDS_O13
Pharmacy/Treatment Dispense Message
23 segments•1 event
RDY_K15
RDY - Display Response in Response to QBP^Q15
7 segments•2 events
REF_I12
Patient Referral
26 segments•4 events
RER_RER
12 segments
12 segments•1 event
RGR_RGR
15 segments
15 segments•1 event
RGV_O15
Pharmacy/Treatment Give
21 segments•1 event
ROR_ROR
12 segments
12 segments•1 event
RPA_I08
Return Patient Authorization
27 segments•4 events
RPI_I01
Return Patient Information
11 segments•1 event
RPI_I04
Return Patient Information
11 segments•1 event
RPL_I02
Return Patient Display List
7 segments•1 event
RPR_I03
Return Patient List
6 segments•1 event
RQA_I08
Request Patient Authorization
26 segments•4 events
RQC_I05
Request Clinical Information
9 segments•2 events
RQI_I01
Patient Insurance Information
10 segments•4 events
RQP_I04
Request Patient Demographics
7 segments•1 event
RQQ_Q09
3 segments
3 segments•1 event
RRA_O18
Pharmacy/Treatment Administration Acknowledgment Message
9 segments•1 event
RRD_O14
Pharmacy/Treatment Dispense Acknowledgment Message
10 segments•1 event
RRE_O12
Pharmacy/Treatment Refill Authorization Request Acknowledgment Message
10 segments•1 event
RRG_O16
Pharmacy/Treatment Give Acknowledgment Message
10 segments•1 event
RRI_I12
Return Referral Information
22 segments•4 events
RSP_K11
RSP - Segment Pattern Response in Response to QBP^Q11
7 segments•1 event
RSP_K13
8 segments
8 segments•1 event
RSP_K15
7 segments
7 segments•1 event
RSP_K21
Segment Pattern Response
8 segments•1 event
RSP_K22
Segment Pattern Response
9 segments•1 event
RSP_K23
Segment Pattern Response
7 segments•1 event
RSP_K24
7 segments
7 segments•1 event
RSP_K25
Personnel Information Response Message
13 segments•1 event
RSP_Z82
Dispense History (Response)
27 segments•1 event
RSP_Z86
Pharmacy Information Comprehensive (Response)
28 segments•1 event
RSP_Z88
Dispense Information (Response)
27 segments•1 event
RSP_Z90
19 segments
19 segments•1 event
RTB_K13
RTB - Tabular Response in Response to QBP^Q13
8 segments•5 events
RTB_Knn
Tabular Response
6 segments
RTB_Q13
8 segments
8 segments•1 event
RTB_Z74
Personnel Information Message
8 segments•1 event
SIU_S12
Schedule Information Unsolicited
18 segments•14 events
SPQ_Q08
4 segments
4 segments•1 event
SQM_S25
3 segments
3 segments•1 event
SQR_S25
20 segments
20 segments•1 event
SRM_S01
Schedule Request Message
22 segments•11 events
SRR_S01
Scheduled Request Response
18 segments•11 events
SSR_U04
Specimen Status Message
4 segments•1 event
SSU_U03
Specimen Status Message
5 segments•1 event
SUR_P09
8 segments
8 segments•1 event
TBR_R08
7 segments
7 segments•1 event
TCU_U10
Test Code Settings Request
4 segments•2 events
UDM_Q05
Unsolicited Display Message
5 segments•1 event
VQQ_Q07
4 segments
4 segments•1 event
VXQ_V01
Query Vaccine Record
3 segments•1 event
VXR_V03
Response Single
18 segments•1 event
VXU_V04
Unsolicited Vaccination Update
15 segments•1 event
VXX_V02
Response Multiple
6 segments•1 event