Skip to content
HL7
Learn
HL7
The Path
Explorer
Builder
Debugger
FR
The Path
Explorer
Builder
Debugger
Glossary
About
HL7 reference
Every HL7 v2 segment and field, searchable instantly.
ABS
Abstract
14 fields
ACC
Accident
11 fields
ADD
Addendum
1 fields
AFF
Professional Affiliation
5 fields
AIG
Appointment Information - General Resource
14 fields
AIL
Appointment Information - Location Resource
12 fields
AIP
Appointment Information - Personnel Resource
12 fields
AIS
Appointment Information
12 fields
AL1
Patient Allergy
6 fields
APR
Appointment Preferences
5 fields
ARQ
Appointment Request
25 fields
AUT
Authorization Information
10 fields
BHS
Batch Header
12 fields
BLC
Blood Code
2 fields
BLG
Billing
4 fields
BPO
Blood product order
14 fields
BPX
Blood product dispense status
21 fields
BTS
Batch Trailer
3 fields
BTX
Blood Product Transfusion/Disposition
19 fields
CDM
Charge Description Master
13 fields
CER
Certificate Detail
31 fields
CM0
Clinical Study Master
11 fields
CM1
Clinical Study Phase Master
3 fields
CM2
Clinical Study Schedule Master
4 fields
CNS
Clear Notification
6 fields
CSP
Clinical Study Phase
4 fields
CSR
Clinical Study Registration
16 fields
CSS
Clinical Study Data Schedule Segment
3 fields
CTD
Contact Data
7 fields
CTI
Clinical Trial Identification
3 fields
DB1
Disability
8 fields
DG1
Diagnosis
21 fields
DRG
Diagnosis Related Group
11 fields
DSC
Continuation Pointer
2 fields
DSP
Display Data
5 fields
ECD
Equipment Command
5 fields
ECR
Equipment Command Response
3 fields
EDU
Educational Detail
9 fields
EQL
Embedded Query Language
4 fields
EQP
Equipment/log Service
5 fields
EQU
Equipment Detail
5 fields
ERQ
Event replay query
3 fields
ERR
Error
12 fields
EVN
Event Type
7 fields
FAC
Facility
12 fields
FHS
File Header
12 fields
FT1
Financial Transaction
31 fields
FTS
File Trailer
2 fields
GOL
Goal Detail
21 fields
GP1
Grouping/Reimbursement - Visit
5 fields
GP2
Grouping/Reimbursement - Procedure Line Item
14 fields
GT1
Guarantor
57 fields
IAM
Patient Adverse Reaction Information
20 fields
IIM
Inventory Item Master
15 fields
IN1
Insurance
53 fields
IN2
Insurance Additional Information
72 fields
IN3
Insurance Additional Information, Certification
25 fields
INV
Inventory Detail
20 fields
IPC
Imaging Procedure Control Segment
9 fields
ISD
Interaction Status Detail
3 fields
LAN
Language Detail
4 fields
LCC
Location Charge Code
4 fields
LCH
Location Characteristic
5 fields
LDP
Location Department
12 fields
LOC
Location Identification
9 fields
LRL
Location Relationship
6 fields
MFA
Master File Acknowledgment
6 fields
MFE
Master File Entry
5 fields
MFI
Master File Identification
6 fields
MRG
Merge Patient Information
7 fields
MSA
Message Acknowledgment
6 fields
MSH
Message Header
21 fields
NCK
System Clock
1 fields
NDS
Notification Detail
4 fields
NK1
Next of Kin
39 fields
NPU
Bed Status Update
2 fields
NSC
Application Status Change
9 fields
NST
Application control level statistics
15 fields
NTE
Notes and Comments
4 fields
OBR
Observation Request
50 fields
OBX
Observation/Result
25 fields
ODS
Dietary Orders, Supplements, and Preferences
4 fields
ODT
Diet Tray Instructions
3 fields
OM1
General Segment
47 fields
OM2
Numeric Observation
10 fields
OM3
Categorical Service/Test/Observation
7 fields
OM4
Observations that Require Specimens
14 fields
OM5
Observation Batteries (Sets
3 fields
OM6
Observations that are Calculated from Other Observations
2 fields
OM7
Additional Basic Attributes
24 fields
ORC
Common Order
31 fields
ORG
Practitioner Organization Unit
12 fields
OVR
Override Segment
5 fields
PCR
Possible Causal Relationship
23 fields
PD1
Patient Additional Demographic
21 fields
PDA
Patient Death and Autopsy
9 fields
PDC
Product Detail Country
15 fields
PEO
Product Experience Observation
25 fields
PES
Product Experience Sender
13 fields
PID
Patient Identification
39 fields
PR1
Procedures
20 fields
PRA
Practitioner Detail
12 fields
PRB
Problem Details
25 fields
PRC
Pricing
18 fields
PRD
Provider Data
9 fields
PSH
Product Summary Header
14 fields
PTH
Pathway
6 fields
PV1
Patient Visit
52 fields
PV2
Patient Visit - Additional Information
49 fields
QAK
Query Acknowledgment
6 fields
QID
Query Identification
2 fields
QPD
Query Parameter Definition
3 fields
QRD
Original-Style Query Definition
12 fields
QRF
Original style query filter
10 fields
QRI
Query Response Instance
3 fields
RCP
Response Control Parameter
7 fields
RDF
Table Row Definition
2 fields
RDT
Table Row Data
1 fields
RF1
Referral Information
11 fields
RGS
Resource Group
3 fields
RMI
Risk Management Incident
3 fields
ROL
Role
12 fields
RQ1
Requisition Detail-1
7 fields
RQD
Requisition Detail
10 fields
RXA
Pharmacy/Treatment Administration
26 fields
RXC
Pharmacy/Treatment Component Order
9 fields
RXD
Pharmacy/Treatment Dispense
33 fields
RXE
Pharmacy/Treatment Encoded Order
44 fields
RXG
Pharmacy/Treatment Give
26 fields
RXO
Pharmacy/Treatment Order
28 fields
RXR
Pharmacy/Treatment Route
6 fields
SAC
Specimen Container detail
44 fields
SCH
Scheduling Activity Information
27 fields
SFT
Software Segment
6 fields
SID
Substance Identifier
4 fields
SPM
Specimen
29 fields
SPR
Stored Procedure Request Definition
4 fields
STF
Staff Identification
38 fields
TCC
Test Code Configuration
14 fields
TCD
Test Code Detail
8 fields
TQ1
Timing/Quantity
14 fields
TQ2
Timing/Quantity Relationship
10 fields
TXA
Transcription Document Header
23 fields
UB1
UB82
23 fields
UB2
UB92 Data
17 fields
URD
Results/update Definition
7 fields
URS
Unsolicited Selection
9 fields
VAR
Variance
6 fields
VTQ
Virtual Table Query Request
5 fields