HL7 v2.9.1 Vocabulary
0.2.0 - 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 0.2.0 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: Sensitivity to Causative Agent Code (2.9.1 - 1.1.0) (Experimental)

Official URL: http://terminology.hl7.org/v2plusvocab/CodeSystem/sensitivityToCausativeAgent | Version: 1.1.0
Active as of 2026-03-13 | Computable Name: SensitivityToCausativeAgent
Other Identifiers: OID:2.16.840.1.113883.18.277, urn:ietf:rfc:3986#Uniform Resource Identifier (URI)#http://terminology.hl7.org/v2plusvocab/CodeSystem/v2-0436
Copyright/Legal: HL7 Inc., 2026

Code system of concepts specifying the reason the patient should not be exposed to a substance. Used in HL7 Version 2.x messaging in the IAM segment.

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

- Hl7VSsensitivityToCausativeAgentCode

Properties

This code system defines the following properties for its concepts

Name | Code | URI | Type | Description | Value Set
version introduced | versionIntroduced | http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#versionIntroduced | string | version when was this code introduced |
version deprecated | 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, to suppress IG-publisher warning, to be replaced with standard later | 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 |
parent | parent | http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#parent | code | parent | Sensitivity to Causative Agent Code (2.9.1 - 1.1.0)

Concepts

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

Code | Display | Definition | version introduced | modified | parent
AD | Adverse Reaction (Not otherwise classified) | Adverse Reaction (Not otherwise classified) | 2.4 | 2015-07-13 |
AL | Allergy | Allergy | 2.4 | 2015-07-13 | AD
CT | Contraindication | Contraindication | 2.4 | 2015-07-13 | AD
IN | Intolerance | Intolerance | 2.4 | 2015-07-13 | AD
SE | Side Effect | Side Effect | 2.7 | 2015-07-13 |