## Union of http://hl7.org/fhir/uv/ips/StructureDefinition/AllergyIntolerance-uv-ips and http://hl7.eu/fhir/eps/StructureDefinition/allergyintolerance-obl-eu-eps

This is the set of resources that conform to either of the profiles AllergyIntolerance (IPS) (http://hl7.org/fhir/uv/ips/StructureDefinition/AllergyIntolerance-uv-ips) and AllergyIntolerance (EPS) (http://hl7.eu/fhir/eps/StructureDefinition/allergyintolerance-obl-eu-eps). E.g. what you have to deal with if you get resources conforming to one of them

### Structure

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
AllergyIntolerance | C | 0..* |  | Allergy or Intolerance (generally: Risk of adverse reaction to a substance) Constraints: ait-1, ait-2
meta | Σ | 0..1 | Meta | Metadata about the resource
implicitRules | ?!Σ | 0..1 | uri | A set of rules under which this content was created
language |  | 0..1 | code | left: Language of the resource content; right: Language of the allergy or intolerance content Binding: ?? (preferred): A human language.
text |  | 0..1 | Narrative | Text summary of the resource, for human interpretation This profile does not constrain the narrative in regard to content, language, or traceability to data elements
contained |  | 0..* | Resource | Contained, inline Resources
extension |  | 0..* | Extension | Extension
modifierExtension | ?! | 0..* | Extension | Extensions that cannot be ignored
identifier | Σ | 0..* | Identifier | left: External ids for this item; right: Business identifier for the allergy or intolerance
clinicalStatus | ?!S Σ | 0..1 | CodeableConcept | left: active | inactive | resolved; right: Current allergy or Intolerance status Binding: ?? (required): The clinical status of the allergy or intolerance.
verificationStatus | ?!Σ | 0..1 | CodeableConcept | left: unconfirmed | confirmed | refuted | entered-in-error; right: Certainty Binding: ?? (required): Assertion about certainty associated with a propensity, or potential risk, of a reaction to the identified substance.
type | S Σ | 0..1 | code | left: allergy | intolerance - Underlying mechanism (if known); right: Type of propensity Binding: ?? (required): Identification of the underlying physiological mechanism for a Reaction Risk.
category | Σ | 0..* | code | food | medication | environment | biologic Binding: ?? (required): Category of an identified substance associated with allergies or intolerances.
criticality | Σ | 0..1 | code | left: low | high | unable-to-assess; right: Criticality Binding: ?? (required): Estimate of the potential clinical harm, or seriousness, of a reaction to an identified substance.
code | S Σ | 1..1 | CodeableConcept | Code that identifies the allergy or intolerance Binding: ?? (preferred): Type of the substance/product, allergy or intolerance condition or a code for absent/unknown allergy.
patient | S Σ | 1..1 | Reference(Patient (IPS) | #sd-Patient-uv-ips-patient-eu-core) | left: Who the sensitivity is for; right: Who the allergy or intolerance concerns
extension |  | 0..* | Extension | Additional content defined by implementations
reference | S Σ | 0..1 | string | Literal reference, Relative, internal or absolute URL
type | Σ | 0..1 | uri | Type the reference refers to (e.g. "Patient") Binding: ?? (extensible): Aa resource (or, for logical models, the URI of the logical model).
identifier | Σ | 0..1 | Identifier | Logical reference, when literal reference is not known
display | Σ | 0..1 | string | Text alternative for the resource
encounter |  | 0..1 | Reference(Encounter) | Encounter when the allergy or intolerance was asserted
onset[x] | S | 0..1 |  | left: When allergy or intolerance was identified; right: Date of onset of the allergy or intolerance
onsetDateTime |  |  | dateTime |
onsetAge |  |  | Age |
onsetPeriod |  |  | Period |
onsetRange |  |  | Range |
onsetString |  |  | string |
recordedDate |  | 0..1 | dateTime | left: Date first version of the resource instance was recorded; right: Date when the allergy or intolerance was recorded
recorder |  | 0..1 | Reference(Practitioner | PractitionerRole | Patient | RelatedPerson) | left: Who recorded the sensitivity; right: Who recorded the allergy or intolerance
asserter | Σ | 0..1 | Reference(Patient | RelatedPerson | Practitioner | PractitionerRole) | left: Source of the information about the allergy; right: Who asserts the allergy or intolerance
lastOccurrence |  | 0..1 | dateTime | Date(/time) of last known occurrence of a reaction
note |  | 0..* | Annotation | Additional text not captured in other fields
extension |  | 0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url
author[x] | Σ | 0..1 |  | Individual responsible for the annotation
authorReference |  |  | Reference(Practitioner | Patient | RelatedPerson | Organization) |
authorString |  |  | string |
time | Σ | 0..1 | dateTime | When the annotation was made
text | Σ | 1..1 | markdown | Additional information about the allergy or intolerance
reaction | S | 0..* | BackboneElement | Adverse Reaction Events linked to exposure to substance
extension |  | 0..* | Extension | Additional content defined by implementations
modifierExtension | ?!Σ | 0..* | Extension | Extensions that cannot be ignored even if unrecognized
substance |  | 0..1 | CodeableConcept | Specific substance or pharmaceutical product considered to be responsible for event Binding: ?? (example): Codes defining the type of the substance (including pharmaceutical products).
manifestation | S | 1..* | CodeableConcept | Clinical symptoms/signs associated with the Event Binding: ?? (preferred): left: Code for the allergy or intolerance reaction manifestation from SNOMED CT.; right: Type of allergy or intolerance reaction expected to be used in MyHealth@EU
description |  | 0..1 | string | Description of the event as a whole
onset |  | 0..1 | dateTime | left: Date(/time) when manifestations showed; right: Reaction onset
severity | S | 0..1 | code | left: mild | moderate | severe (of event as a whole); right: Reaction severity Binding: ?? (required): Clinical assessment of the severity of a reaction event as a whole, potentially considering multiple different manifestations.
exposureRoute |  | 0..1 | CodeableConcept | How the subject was exposed to the substance Binding: ?? (example): A coded concept describing the route or physiological path of administration of a therapeutic agent into or onto the body of a subject.
note |  | 0..* | Annotation | Text about event not captured in other fields
Documentation for this format