description: To promote interoperability and adoption through common implementation, this profile sets minimum expectations for the AllergyIntolerance resource to record, search, and fetch allergies/adverse reactions associated with a patient. It identifies which core elements, extensions, vocabularies, and value sets **SHALL** be present and constrains the way the elements are used when using the profile. It provides the floor for standards development for specific use cases. 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: 7.0.0-ballot class: profile kind: resource url: http://hl7.org/fhir/us/core/StructureDefinition/us-core-allergyintolerance base: http://hl7.org/fhir/StructureDefinition/AllergyIntolerance version: 7.0.0-ballot required: [code]