HL7 v2.6 Vocabulary
0.2.0 - ci-build

HL7 v2.6 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.v26/ and changes regularly. See the Directory of published versions

## CodeSystem: Allergen Type (2.6 - 1.1.0) (Experimental)

Official URL: http://terminology.hl7.org/v2plusvocab/CodeSystem/allergenType | Version: 1.1.0
Active as of 2026-03-13 | Computable Name: AllergenType
Other Identifiers: OID:2.16.840.1.113883.18.54, urn:ietf:rfc:3986#Uniform Resource Identifier (URI)#http://terminology.hl7.org/v2plusvocab/CodeSystem/v2-0127
Copyright/Legal: HL7 Inc., 2026

Code system of concepts speciying a classification of general allergy categories (drug, food, pollen, etc.). Used in HL7 Version 2.x messaging in the AL1 segment.

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

- Hl7VSallergyType

Properties

This code system defines the following properties for its concepts

Name | Code | URI | Type | Description
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

Concepts

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

Code | Display | Definition | version introduced | Deutsch (German, de)
AA | Animal Allergy | Animal Allergy | 2.4 | Tierallergie
DA | Drug Allergy | Drug allergy | 2.2 | Medikamentenallergie
EA | Environmental Allergy | Environmental Allergy | 2.4 | Allergie gegen Umwelteinflüsse
FA | Food Allergy | Food allergy | 2.2 | Nahrungsmittelallergie
LA | Pollen Allergy | Pollen Allergy | 2.4 | Pollenallergie
MA | Miscellaneous Allergy | Miscellaneous allergy | 2.2 | Sonstige Allergie
MC | Miscellaneous Contraindication | Miscellaneous contraindication | 2.2 | Sonstige Kontraindikation
PA | Plant Allergy | Plant Allergy | 2.4 | Pflanzenallergie