HL7 v2.1 Vocabulary
0.1.0 - ci-build

HL7 v2.1 Vocabulary, published by HL7/FO. This guide is not an authorized publication; it is the continuous build for version 0.1.0 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.v21/ and changes regularly. See the Directory of published versions

## Downloads

You can also download:

- this entire guide,

The expanded value sets can be found:

- Expansion in XML
- Expansion in JSON

The source code for this Implementation Guide will be found shortly on IHE GitHub

#### Cross Version Analysis

This is an R4 IG. None of the features it uses are changed in R4B, so it can be used as is with R4B systems. Packages for both R4 (hl7.v2.uv.terminology.v21.r4) and R4B (hl7.v2.uv.terminology.v21.r4b) are available.

#### Dependency Table

IG | Package | FHIR | Comment
--- | --- | --- | ---
HL7 v2.1 Vocabulary | hl7.v2.uv.terminology.v21#0.1.0 | R4 |
HL7 Terminology (THO) | hl7.terminology.r4#7.0.1 | R4 | Automatically added as a dependency - all IGs depend on HL7 Terminology
FHIR Extensions Pack | hl7.fhir.uv.extensions.r4#5.2.0 | R4 |
FHIR Tooling Extensions IG | hl7.fhir.uv.tools.r4#0.9.0 | R4 | for example references

Package hl7.fhir.uv.extensions.r4#5.2.0 This IG defines the global extensions - the ones defined for everyone. These extensions are always in scope wherever FHIR is being used (built Mon, Feb 10, 2025 21:45+1100+11:00)

Package hl7.fhir.uv.tools.r4#0.9.0 This IG defines the extensions that the tools use internally. Some of these extensions are content that are being evaluated for elevation into the main spec, and others are tooling concerns (built Tue, Dec 16, 2025 23:18+1100+11:00)

#### Globals Table

There are no Global profiles defined

#### IP Statements

This publication includes IP covered under the following statements.

- HL7 Inc., 2026
  Show Usage
  - Acknowledgment Code (2.1 - 1.0.0): Hl7VSacknowledgmentCode
  - Admission Type (2.1 - 1.0.0): Hl7VSadmissionType
  - Ambulatory Status (2.1 - 1.0.0): Hl7VSambulatoryStatus
  - Bed Status (2.1 - 1.0.0): Hl7VSbedStatus
  - Charge Type (2.1 - 1.0.0): Hl7VSchargeType
  - Check Digit Scheme (2.1 - 1.0.0): Hl7VScheckDigitScheme
  - Deferred Response Type (2.1 - 1.0.0): Hl7VSdeferredResponseType
  - Delayed Acknowledgement Type (2.1 - 1.0.0): Hl7VSdelayedAcknowledgmentType
  - Diagnostic Service Section ID (2.1 - 1.0.0): Hl7VSdiagnosticServiceSectionId
  - ETHNIC GROUP (2.1 - 1.0.0): Hl7VSethnicGroup
  - Event (2.1 - 1.0.0): Hl7VSevent
  - Event Reason (2.1 - 1.0.0): Hl7VSeventReason
  - Invocation Event (2.1 - 1.0.0): Hl7VSwhenToCharge
  - Marital Status (2.1 - 1.0.0): Hl7VSmaritalStatus
  - Message Type (2.1 - 1.0.0): Hl7VSmessageType
  - Nature of Abnormal Testing (2.1 - 1.0.0): Hl7VSnatureOfAbnormalTesting
  - Abnormal Flags (2.1 - 1.0.0): Hl7VSinterpretationCode
  - Observation Result Status Codes Interpretation (2.1 - 1.0.0): Hl7VSobservationResultStatus
  - Order Control Codes (2.1 - 1.0.0): Hl7VSorderControl
  - Order Status (2.1 - 1.0.0): Hl7VSorderStatus
  - Patient Class (2.1 - 1.0.0): Hl7VSpatientClass
  - Priority (2.1 - 1.0.0): Hl7VSpriority
  - Processing ID (2.1 - 1.0.0): Hl7VSprocessingId
  - Quantity Limited Request (2.1 - 1.0.0): Hl7VSquantityLimitedRequest
  - Query Priority (2.1 - 1.0.0): Hl7VSqueryPriority
  - Query/Response Format Code (2.1 - 1.0.0): Hl7VSqueryFormatCode
  - Query Results Level (2.1 - 1.0.0): Hl7VSqueryResultsLevel
  - Religion (2.1 - 1.0.0): Hl7VSreligion
  - Report Priority (2.1 - 1.0.0): Hl7VSreportPriority
  - Response Flag (2.1 - 1.0.0): Hl7VSresponseFlag
  - Result Status (2.1 - 1.0.0): Hl7VSresultStatus-Obr
  - ROUTE (2.1 - 1.0.0): Hl7VSroute
  - Sex (2.1 - 1.0.0): Hl7VSsex
  - Source of Comment (2.1 - 1.0.0): Hl7VSsourceOfComment
  - Specimen Action Code (2.1 - 1.0.0): Hl7VSactionCode
  - Specimen Source Codes (2.1 - 1.0.0): Hl7VSsourceOfSpecimen
  - STOCK LOCATION (2.1 - 1.0.0): Hl7VSstockLocation
  - Transportation Mode (2.1 - 1.0.0): Hl7VStransportationMode
  - Version ID (2.1 - 1.0.0): Hl7VSversionControlTable
  - What Subject Filter (2.1 - 1.0.0): Hl7VSwhatSubjectFilter