HL7 V2 | TABLE 0127

Table 0127: Allergen Type

Table of codes speciying a classification of general allergy categories (drug, food, pollen, etc.).

Type: User-defined (site-defined)
Codes: 8
Introduced: HL7 v2.2
Used in: AL1-2
FHIR code system: http://hl7.org/fhir/allergy-intolerance-category
THO code system: http://terminology.hl7.org/CodeSystem/v2-0127
OID: 2.16.840.1.113883.18.54

User-defined (site-defined): HL7 suggests these values, and each site may use its own. PipeHat notes codes outside this list as information, not errors.

Codes

Code	Meaning	FHIR code
`DA`	Drug allergy	`medication`
`FA`	Food allergy	`food`
`MA`	Miscellaneous allergy	`MA`
`MC`	Miscellaneous contraindication	`MC`
`EA`	Environmental Allergy	`environment`
`AA`	Animal Allergy	`biologic`
`PA`	Plant Allergy	`environment`
`LA`	Pollen Allergy	`environment`

FHIR codes from the HL7 v2-to-FHIR concept map AllergenType (unconditional mappings only).

Where it's used

Element	Name	FHIR (v2-to-FHIR mapping)
`AL1-2`	Allergen Type Code	`AllergyIntolerance.category` `AllergyIntolerance.category.extension.url` `AllergyIntolerance.category.extension.valueCodeableConcept` `AllergyIntolerance.type`

Elements with a dot (such as CX.5) are data type components, used wherever that data type appears.

Source: HL7 Terminology (THO) 7.4.0 and the HL7 v2-to-FHIR Implementation Guide 1.0.0, published by HL7 International under CC0. Check your trading partner's specification for the values they actually send.