description: An allergy or intolerance describes a patient’s tendency towards hypersensitivity to a certain substance, so that an unwanted physiological reaction is expected after exposure to the substance, while most people would not exhibit such a reaction to that amount. The observed physiological changes are usually the result of an immunological reaction.\r\nThe substances can be categorized as follows:\r\n* Medicine\r\n* Medicine category\r\n* Ingredient/addition\r\n* Nutrition\r\n* Environmental factor\r\n* Animal\r\n* Plants\r\n* Chemicals\r\n* Inhaled allergenic
package_name: nictiz.fhir.nl.r4.nl-core
derivation: constraint
name: NlcoreAllergyIntolerance
type: AllergyIntolerance
elements:
  patient:
    type: Reference
    refers: ['http://hl7.org/fhir/StructureDefinition/Patient', 'http://nictiz.nl/fhir/StructureDefinition/nl-core-Patient']
    index: 0
package_version: 0.10.0-beta.1
class: profile
kind: resource
url: http://nictiz.nl/fhir/StructureDefinition/nl-core-AllergyIntolerance
base: http://nictiz.nl/fhir/StructureDefinition/zib-AllergyIntolerance
version: null