US Veterans Health Administration FHIR Map Set Implementation Guide
1.3.1 - 250401
US Veterans Health Administration FHIR Map Set Implementation Guide
1.3.1 - 250401
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| Official URL: http://va.gov/fhir/ValueSet/allergyMechanism | Version: 1.3.1 | |||
| Active as of 2025-03-31 | Computable Name: AllergyMechanism | |||
FHIR Target ValueSet for Terminology Maps VF_allergyMechanism
References
This value set contains the valid values for FHIR. The source values from VistA are mapped to these values in the linked ConceptMap.
Generated Narrative: ValueSet allergyMechanism
http://hl7.org/fhir/allergy-intolerance-type| Code | Display | Definition |
| 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). |
ValueSet
Expansion performed internally based on codesystem AllergyIntoleranceType v4.0.1 (CodeSystem)
This value set contains 2 concepts
| Code | System | Display (en-US) | Definition |
| allergy | http://hl7.org/fhir/allergy-intolerance-type | 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 | http://hl7.org/fhir/allergy-intolerance-type | 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). |
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 |
| System | 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) |
| 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 |