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Key: = Must support, = QICore-defined extension, = Is-Modifier
Field Card. Type and Description 
assertedDate 0..1DateTimeThe date on which the existance of the AllergyIntolerance was first asserted or acknowledged.asserter 0..1ReferenceThe source of the information about the allergy that is recorded.category 0..*List<String>Category of the identified substance.Binding: AllergyIntoleranceCategory (Required)
clinicalStatus 0..1StringThe clinical status of the allergy or intolerance.Binding: AllergyIntoleranceClinicalStatus (Required)
code 1..1ConceptCode for an allergy or intolerance statement (either a positive or a negated/excluded statement). This may be a code for a substance or pharmaceutical product that is considered to be responsible for the adverse reaction risk (e.g., "Latex"), an allergy or intolerance condition (e.g., "Latex allergy"), or a negated/excluded code for a specific substance or class (e.g., "No latex allergy") or a general or categorical negated statement (e.g., "No known allergy", "No known drug allergies").criticality 0..1StringEstimate of the potential clinical harm, or seriousness, of the reaction to the identified substance.Binding: AllergyIntoleranceCriticality (Required)
identifier 0..*List<Identifier>This records identifiers associated with this allergy/intolerance concern that are defined by business processes and/or used to refer to it when a direct URL reference to the resource itself is not appropriate (e.g. in CDA documents, or in written / printed documentation).lastOccurrence 0..1DateTimeRepresents the date and/or time of the last known occurrence of a reaction event.note 0..*List<Annotation>Additional narrative about the propensity for the Adverse Reaction, not captured in other fields.onset[x] 0..1Interval<DateTime | Age | Interval<DateTime> | Interval<Quantity> | StringEstimated or actual date, date-time, or age when allergy or intolerance was identified.patient 1..1ReferenceThe patient who has the allergy or intolerance.reaction 0..*List<BackboneElement>Details about each adverse reaction event linked to exposure to the identified substance.reaction-duration 0..1ExtensionThe amount of time that the Adverse Reaction persisted.reaction.description 0..1StringText description about the reaction as a whole, including details of the manifestation if required.reaction.exposureRoute 0..1ConceptIdentification of the route by which the subject was exposed to the substance.Binding: SNOMED CT Route Codes (Example)
reaction.id 0..1Stringunique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.reaction.manifestation 1..*List<Concept>Clinical symptoms and/or signs that are observed or associated with the adverse reaction event.Binding: SNOMED CT Clinical Findings (Example)
reaction.note 0..*List<Annotation>Additional text about the adverse reaction event not captured in other fields.reaction.onset 0..1DateTimeRecord of the date and/or time of the onset of the Reaction.reaction.severity 0..1StringClinical assessment of the severity of the reaction event as a whole, potentially considering multiple different manifestations.Binding: AllergyIntoleranceSeverity (Required)
reaction.substance 0..1ConceptIdentification of the specific substance (or pharmaceutical product) considered to be responsible for the Adverse Reaction event. Note: the substance for a specific reaction may be different from the substance identified as the cause of the risk, but it must be consistent with it. For instance, it may be a more specific substance (e.g. a brand medication) or a composite product that includes the identified substance. It must be clinically safe to only process the 'code' and ignore the 'reaction.substance'.Binding: Substance Code (Example)
reasonRefuted 0..1ExtensionA code capturing the explanation of why the allergy or intolerance has been refuted. Should be specified only if the status is refuted.recorder 0..1ReferenceIndividual who recorded the record and takes responsibility for its content.resolutionAge 0..1ExtensionThe estimated patient age at which the allergy or intolerance resolved. Should be specified only if the status is resolved.type 0..1StringIdentification of the underlying physiological mechanism for the reaction risk.Binding: AllergyIntoleranceType (Required)
verificationStatus 1..1StringAssertion about certainty associated with the propensity, or potential risk, of a reaction to the identified substance (including pharmaceutical product).Binding: AllergyIntoleranceVerificationStatus (Required)
Key: = Must support, = QICore-defined extension, = Is-Modifier
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