HL7 v2.5.1 Vocabulary
0.1.0 - ci-build

HL7 v2.5.1 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.v251/ and changes regularly. See the Directory of published versions

## CodeSystem: CWE statuses (2.5.1 - 1.0.0) (Experimental)

Official URL: http://terminology.hl7.org/v2plusvocab/CodeSystem/cweStatuses | Version: 1.0.0
Active as of 2026-01-27 | Computable Name: CweStatuses
Other Identifiers: OID:2.16.840.1.113883.18.213
Copyright/Legal: HL7 Inc., 2026

HL7-defined code system of comcepts that represent an exception identifier code; that is, a code that is not defined in the value set (either model or site-extended). These are occationsally referred to a 'flavors of null' although this set of concepts is specific to the CWE datatype used in HL7 Version 2.x messaging, and the codes may be used in the 'identifier' component of the 'triplets' in that datatype.

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

- Hl7VScweStatuses

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/cweStatuses` defines the following codes:

Code | Display | Definition | versionIntroduced
NA | Not applicable | Not applicable | 2.3.1
NASK | Not asked | Not asked | 2.3.1
NAV | Not available | Not available | 2.3.1
U | Unknown | Unknown | 2.3.1
UASK | Asked but Unknown | Asked but Unknown | 2.3.1