FHIR Release 3 (STU) Current Build
This page is part of FHIR STU 3 (v3.0.1) in it's permanent home (it will always be available at this URL). It has been superceded by R4 . For a full list of available versions, see the Directory of published versions . Code System http://hl7.org/fhir/allergy-intolerance-category

Vocabulary Patient Care Work Group   Maturity Level : 3 Informative Trial Use Use Context : Any

This is a code system defined by the FHIR project.


Defining URL: http://hl7.org/fhir/allergy-intolerance-category
Version: 4.1.0
Name: AllergyIntoleranceCategory
Title: AllergyIntoleranceCategory

Category of an identified substance. substance associated with allergies or intolerances.

Committee: Patient Care Work Group
OID: 2.16.840.1.113883.4.642.1.124 2.16.840.1.113883.4.642.1.134 (for OID based terminology systems)
Source Resource XML / JSON

This Code system is used in the following value sets:

Category of an identified substance. substance associated with allergies or intolerances.

This code system http://hl7.org/fhir/allergy-intolerance-category defines the following codes:
Code Display Definition
food Food Any substance consumed to provide nutritional support for the body.
medication Medication Substances administered to achieve a physiological effect.
environment Environment Any substances that are encountered in the environment, including any substance not already classified as food, medication, or biologic.
biologic Biologic A preparation that is synthesized from living organisms or their products, especially a human or animal protein, such as a hormone or antitoxin, that is used as a diagnostic, preventive, or therapeutic agent. Examples of biologic medications include: vaccines; allergenic extracts, which are used for both diagnosis and treatment (for example, allergy shots); gene therapies; cellular therapies. There are other biologic products, such as tissues, that which are not typically associated with allergies.


See the full registry of value sets code systems defined as part of FHIR.

Explanation of the columns that may appear on this page:

Level A few code lists that FHIR defines are hierarchical - each code is assigned a level. In this scheme, some codes are under other codes, and imply that the code they are under also applies See Code System for further information.
Source The source of the definition of the code (when the value set draws in codes defined elsewhere)
Code The code (used as the code in the resource instance). If the code is in italics, this indicates that the code is not selectable ('Abstract')
Display The display (used in the display element of a Coding ). If there is no display, implementers should not simply display the code, but map the concept into their application
Definition An explanation of the meaning of the concept
Comments Additional notes about how to use the code