description: The US Core AllergyIntolerance Profile inherits from the FHIR [AllergyIntolerance](https://hl7.org/fhir/R4/allergyintolerance.html) resource; refer to it for scope and usage definitions. This profile sets minimum expectations for the AllergyIntolerance resource to record, search, and fetch allergies/adverse reactions associated with a patient. It specifies which core elements, extensions, vocabularies, and value sets **SHALL** be present and constrains how the elements are used. Providing the floor for standards development for specific use cases promotes interoperability and adoption.
package_name: hl7.fhir.us.core
derivation: constraint
name: USCoreAllergyIntolerance
type: AllergyIntolerance
elements:
  clinicalStatus:
    binding: {strength: required, valueSet: 'http://hl7.org/fhir/ValueSet/allergyintolerance-clinical'}
    mustSupport: true
    index: 0
  verificationStatus:
    binding: {strength: required, valueSet: 'http://hl7.org/fhir/ValueSet/allergyintolerance-verification'}
    mustSupport: true
    index: 1
  code:
    binding: {strength: extensible, valueSet: 'http://cts.nlm.nih.gov/fhir/ValueSet/2.16.840.1.113762.1.4.1186.8'}
    mustSupport: true
    index: 2
  patient:
    type: Reference
    mustSupport: true
    refers: ['http://hl7.org/fhir/us/core/StructureDefinition/us-core-patient']
    index: 3
  reaction:
    mustSupport: true
    index: 4
    elements:
      manifestation:
        binding: {strength: extensible, valueSet: 'http://hl7.org/fhir/ValueSet/clinical-findings'}
        mustSupport: true
        index: 5
package_version: 8.0.0-ballot
class: profile
kind: resource
url: http://hl7.org/fhir/us/core/StructureDefinition/us-core-allergyintolerance
base: http://hl7.org/fhir/StructureDefinition/AllergyIntolerance
version: 8.0.0-ballot
required: [code]