HL7 v2.9.1 Vocabulary
0.1.0 - ci-build

HL7 v2.9.1 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.v291/ and changes regularly. See the Directory of published versions

## CodeSystem: Sexual Orientation (2.9.1 - 1.0.0) (Experimental)

Official URL: http://terminology.hl7.org/v2plusvocab/CodeSystem/snomedct | Version: 1.0.0
Active as of 2026-01-25 | Computable Name: Snomedct
Other Identifiers: OID:2.16.840.1.113883.6.96
Copyright/Legal: HL7 Inc., 2026

Snomed CT

This Code system is referenced in the content logical definition of the following value sets:

- Sexual_Orientation

Properties

This code system defines the following properties for its concepts

Name | Code | URI | Type | Description
versionIntroduced | versionIntroduced | http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#versionIntroduced | string | version when was this code introduced
versionDeprecated | versionDeprecated | http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#versionDeprecated | string | version when was this code deprecated
status | status | http://hl7.org/fhir/concept-properties#status | code | A code that indicates the status of the concept. Typical values are active, experimental, deprecated, and retired
comment | comment | http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#comment | string | A string that provides additional detail pertinent to the use or understanding of the concept
usage | usage | http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#usage | string | usage notes for this code
modified | modified | http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#modified | dateTime | date of last modification

Concepts

This case-sensitive code system `http://terminology.hl7.org/v2plusvocab/CodeSystem/snomedct` defines the following codes:

Code | Display | Definition | status | comment | usage | modified
20430005 | heterosexual |  | new |  | The HL70396 code for this code is ‘SCT’ | 2022-08-28
42035005 | Bisexual |  | new |  | The HL70396 code for this code is ‘SCT’ | 2022-08-28
89217008 | Lesbian, gay or homosexual |  | new |  | The HL70396 code for this code is ‘SCT’ | 2022-08-28
UNK | Unknown | A proper value is applicable, but not known. | new | This means the actual value is not known. If the only thing that is unknown is how to properly express the value in the necessary constraints (value set, datatype, etc.), then the OTH or UNC flavor should be used. No properties should be included for a datatype with this property unless: 1. Those properties themselves directly translate to a semantic of "unknown". (E.g. a local code sent as a translation that conveys 'unknown') 2. Those properties further qualify the nature of what is unknown. (E.g. specifying a use code of "H" and a URL prefix of "tel:" to convey that it is the home phone number that is unknown.) This code is drawn from V3 Null Flavor (http://terminology.hl7.org/CodeSystem/v3-NullFlavor). The HL70396 code for this code is ‘NULLFL’ |  | 2023-08-18
asked-declined | Asked But Declined | The source was asked but declined to answer. | new | This code is drawn from FHIR DataAbsentReason (http://terminology.hl7.org/CodeSystem/data-absent-reason). The HL70396 code for this code is ‘DAR’ |  | 2023-08-18