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: healthdata.be.r4.cbb derivation: constraint name: HdBeAllergyIntolerance type: AllergyIntolerance elements: onset: choices: [] index: 12 slicing: rules: open discriminator: - {path: $this, type: type} min: null slices: onsetDateTime: match: {} schema: short: StartDateTime choices: [onsetDateTime] index: 14 category: short: AllergyCategory binding: {strength: required, valueSet: 'http://hl7.org/fhir/ValueSet/allergy-intolerance-category|4.0.1'} index: 2 extensions: allergyCategoryCodelist: url: https://fhir.healthdata.be/StructureDefinition/ext-CodeSpecification type: Extension index: 3 elements: value: short: AllergyCategory choices: [] index: 5 elements: extension: type: Extension url: https://fhir.healthdata.be/StructureDefinition/ext-CodeSpecification index: 3 slicing: slices: allergyCategoryCodelist: match: {} schema: type: Extension url: https://fhir.healthdata.be/StructureDefinition/ext-CodeSpecification index: 3 elements: value: short: AllergyCategory choices: [] index: 5 criticality: short: Criticality binding: {strength: required, valueSet: 'http://hl7.org/fhir/ValueSet/allergy-intolerance-criticality|4.0.1'} index: 6 extensions: criticalExtentCodelist: url: https://fhir.healthdata.be/StructureDefinition/ext-CodeSpecification type: Extension index: 7 elements: value: short: Criticality choices: [] index: 9 elements: extension: type: Extension url: https://fhir.healthdata.be/StructureDefinition/ext-CodeSpecification index: 7 slicing: slices: criticalExtentCodelist: match: {} schema: type: Extension url: https://fhir.healthdata.be/StructureDefinition/ext-CodeSpecification index: 7 elements: value: short: Criticality choices: [] index: 9 clinicalStatus: short: AllergyStatus binding: {strength: required, valueSet: 'http://hl7.org/fhir/ValueSet/allergyintolerance-clinical|4.0.1'} index: 0 note: index: 17 elements: text: {short: Comment, index: 18} code: short: CausativeAgent binding: {strength: required, valueSet: 'https://fhir.healthdata.be/ValueSet/CausativeAgent'} index: 10 onsetDateTime: short: StartDateTime type: dateTime choiceOf: onset index: 15 slicing: slices: onsetDateTime: match: {} schema: {short: StartDateTime, type: dateTime, choiceOf: onset, index: 15} lastOccurrence: {short: LastReactionDateTime, index: 16} verificationStatus: {short: AllergyStatus, index: 1} reaction: short: Reaction index: 19 elements: substance: short: SpecificSubstance binding: {strength: required, valueSet: 'https://fhir.healthdata.be/ValueSet/CausativeAgent'} index: 20 manifestation: short: Symptom binding: {strength: extensible, valueSet: 'https://fhir.healthdata.be/ValueSet/Symptom'} index: 21 description: {short: ReactionDescription, index: 22} onset: {short: ReactionTime, index: 23} severity: short: Severity binding: {strength: required, valueSet: 'http://hl7.org/fhir/ValueSet/reaction-event-severity|4.0.1'} index: 24 exposureRoute: short: RouteOfExposure binding: {strength: required, valueSet: 'https://fhir.healthdata.be/ValueSet/RouteOfExposure'} index: 25 package_version: 0.14.0-beta class: profile kind: resource url: https://fhir.healthdata.be/StructureDefinition/HdBe-AllergyIntolerance base: http://hl7.org/fhir/StructureDefinition/AllergyIntolerance version: null