FHIR Cross-Version Extensions package for FHIR R4B from FHIR R4
0.0.1-snapshot-2 - informative International flag

FHIR Cross-Version Extensions package for FHIR R4B from FHIR R4 - Version 0.0.1-snapshot-2. See the Directory of published versions

CodeSystem: AllergyIntoleranceType

Official URL: http://hl7.org/fhir/allergy-intolerance-type Version: 4.0.1
Standards status: Informative Maturity Level: 3 Responsible: Patient Care Computable Name: AllergyIntoleranceType

Identification of the underlying physiological mechanism for a Reaction Risk.

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

This case-sensitive code system http://hl7.org/fhir/allergy-intolerance-type defines the following codes:

CodeDisplayDefinition
allergy Allergy A propensity for hypersensitive reaction(s) to a substance. These reactions are most typically type I hypersensitivity, plus other "allergy-like" reactions, including pseudoallergy.
intolerance Intolerance A propensity for adverse reactions to a substance that is not judged to be allergic or "allergy-like". These reactions are typically (but not necessarily) non-immune. They are to some degree idiosyncratic and/or patient-specific (i.e. are not a reaction that is expected to occur with most or all patients given similar circumstances).