HL7 segment ID

These codes are based on the HL7 v2.3 standard.

For more information about HL7, refer to Health Level Seven - An Application Protocol For Electronic Data Exchange In Healthcare Environments. This is available from Health Level Seven, Inc.

This table lists the HL7 segment IDs:

Segment ID Description Location
ACC Accident Chapter 6: Financial Management
ADD Addendum Chapter 2: Control/Query
AIG Appointment information, general resource Chapter 10: Scheduling
AIL Appointment information, general resource Chapter 10: Scheduling
AIP Appointment information, personnel resource Chapter 10: Scheduling
AIS Appointment information, service Chapter 10: Scheduling
AL1 Patient allergy information Chapter 3: Patient Administration
APR Appointment preferences Chapter 10: Scheduling
ARQ Appointment request Chapter 10: Scheduling
AUT Authorization information Chapter 11: Patient Referral
BHS Batch header Chapter 2: Control/Query
BLG Billing

Chapter 4: Order Entry

BTS Batch trailer Chapter 2: Control/Query
CDM Charge description master Chapter 8: Master Files
CM0 Clinical study master Chapter 7: Observation Reporting
CM1 Clinical study phase master Chapter 7: Observation Reporting
CM2 Clinical study schedule master Chapter 7: Observation Reporting
CSP Clinical study phase Chapter 7: Observation Reporting
CSR Clinical study registration Chapter 7: Observation Reporting
CSS Clinical study data schedule Chapter 7: Observation Reporting
CTD Contact data Chapter 11: Patient Referral
CTI Clinical trial identification Chapter 7: Observation Reporting
DB1 Disability Chapter 3: Patient Administration
DG1 Diagnosis Chapter 6: Financial Management
DRG Diagnosis related group Chapter 6: Financial Management
DSC Continuation pointer Chapter 2: Control/Query
DSP Display data Chapter 2: Control/Query
EQL Embedded query language Chapter 2: Control/Query
EQR Event replay query Chapter 2: Control/Query
ERR Error Chapter 2: Control/Query
EVN Event type Chapter 3: Patient Administration
FAC Facility Chapter 7: Observation Reporting
FHS File header Chapter 2: Control/Query
FT1 Financial transaction Chapter 6: Financial Management
FTS File trailer Chapter 2: Control/Query
GOL Goal detail Chapter 12: Patient Care
GT1 Guarantor Chapter 6: Financial Management
IN1 Insurance Chapter 6: Financial Management
IN2 Insurance additional information Chapter 6: Financial Management
IN3 Insurance additional information, certification segment Chapter 6: Financial Management
LCC Location charge code Chapter 8: Master Files
LCH Location characteristic Chapter 8: Master Files
LDP Location department Chapter 8: Master Files
LOC Location identifier Chapter 8: Master Files
LRL Location relationship Chapter 8: Master Files
MFA Master file acknowledgment Chapter 8: Master Files
MFE Master file entry Chapter 8: Master Files
MFI Master file identification Chapter 8: Master Files
MRG Merge patient information Chapter 3: Patient Administrations
MSA Message acknowledgment Chapter 2: Control/Query
MSH Message header Chapter 2: Control/Query
NK1 Next of kin/associated parties Chapter 3: Patient Administrations
NPU Bed status update Chapter 3: Patient Administrations
NTE Notes and comments Chapter 2: Control/Query
OBR Observation Entry

Chapter 4: Order Entry

Chapter 7: Observation Reporting

OBX Observation/result

Chapter 7: Observation Reporting

Chapter 9: Medical Records/Information Management

ODS Dietary orders, supplements, and preferences Chapter 4: Order Entry
ODT Diet tray instructions Chapter 4: Order Entry
OM1 General segment (fields that apply to most observations) Chapter 8: Master Files
OM2 Numeric observation Chapter 8: Master Files
OM3 Categorical test/observation Chapter 8: Master Files
OM4 Observations that require specimens Chapter 8: Master Files
OM5 Observations batteries (sets) Chapter 8: Master Files
OM6 Observations that are calculated from other observations Chapter 8: Master Files
ORC Common order Chapter 4: Order Entry
ORO Order other Chapter 4: Order Entry
PCR Possible causal relationship Chapter 7: Observation Reporting
PDC Product detail country Chapter 7: Observation Reporting
PD1 Patient additional demographic Chapter 3: Patient Administrations
PEO Product experience observation Chapter 7: Observation Reporting
PES Product experience sender Chapter 7: Observation Reporting
PID Patient identification Chapter 3: Patient Administrations
PRA Practitioner detail Chapter 8: Master Files
PRB Problem detail Chapter 12: Patient Care
PRC Pricing Chapter 8: Master Files
PRD Provider data Chapter 11: Patient Referral
PR1 Procedures Chapter 6: Financial Management
PSH Product summary header Chapter 7: Observation Reporting
PTH Pathway Chapter 12: Patient Care
PV1 Patient visit Chapter 3: Patient Administrations
PV2 Patient visit, additional information Chapter 3: Patient Administrations
QAK Query acknowledgment Chapter 2: Control/Query
QRD Query definition Chapter 2: Control/Query
QRF Query filter Chapter 2: Control/Query
RDF Table row definition Chapter 2: Control/Query
RDT Table row data Chapter 2: Control/Query
RF1 Referral information Chapter 11: Patient Referral
RGS Resource group Chapter 10: Scheduling
ROL Role Chapter 12: Patient Care
RQD Requisition detail Chapter 4: Order Entry
RQ1 Requisition detail 1 Chapter 4: Order Entry
RXA Pharmacy/treatment administration Chapter 4: Order Entry
RXC Pharmacy/treatment component order Chapter 4: Order Entry
RXD Pharmacy/treatment dispense Chapter 4: Order Entry
RXE Pharmacy/treatment encoded order Chapter 4: Order Entry
RXG Pharmacy/treatment give Chapter 4: Order Entry
RXO Pharmacy/treatment order Chapter 4: Order Entry
RXR Pharmacy/treatment route Chapter 4: Order Entry
RX1 Pharmacy order Chapter 4: Order Entry
SCH Schedule activity information Chapter 10: Scheduling
SPR Stored procedure request definition Chapter 2: Control/Query
STF Staff identification Chapter 8: Master Files
TXA Transcription document header Chapter 9: Medical Records/Information Management
UB1 UB82 data Chapter 6: Financial Management
UB2 UB92 data Chapter 6: Financial Management
URD Results/Update definition Chapter 2: Control/Query
URS Unsolicited selection Chapter 2: Control/Query
VAR Variance Chapter 12: Patient Care
VTQ Virtual table query request segment Chapter 2: Control/Query