<status value="draft" /> <description value="This profile describes the AllergyIntolerance for MERT." /> <fhirVersion value="4.0.1" /> <kind value="resource" /> <abstract value="false" /> <type value="AllergyIntolerance" /> <baseDefinition value="http://hl7.org/fhir/StructureDefinition/AllergyIntolerance" /> <derivation value="constraint" /> <differential> <element id="AllergyIntolerance.clinicalStatus"> <path value="AllergyIntolerance.clinicalStatus" /> <comment value="Required in MERT. Uses base required binding (AllergyIntoleranceClinicalStatusCodes)." /> <min value="1" /> <mustSupport value="true" /> </element> <element id="AllergyIntolerance.type"> <path value="AllergyIntolerance.type" /> <comment value="Indicates allergy or intolerance mechanism when known. Uses base required binding." /> <mustSupport value="true" /> </element> <element id="AllergyIntolerance.category"> <path value="AllergyIntolerance.category" /> <comment value="Use category when known (food | medication | environment | biologic). Uses base required binding." /> </element> <element id="AllergyIntolerance.code"> <path value="AllergyIntolerance.code" /> <comment value="Transport-first: send existing source coding when available (e.g., DIN for medication allergies). If no appropriate coded concept is available, populate CodeableConcept.text." /> <min value="1" /> <mustSupport value="true" /> </element> <element id="AllergyIntolerance.patient"> <path value="AllergyIntolerance.patient" /> <type> <code value="Reference" /> <targetProfile value="https://intrahealth.com/fhir/mert/StructureDefinition/PatientMERT" /> </type> <mustSupport value="true" /> </element> <element id="AllergyIntolerance.encounter"> <path value="AllergyIntolerance.encounter" /> <mustSupport value="true" /> </element> <element id="AllergyIntolerance.onset[x]"> <path value="AllergyIntolerance.onset[x]" /> <comment value="Use onset[x] when available to indicate when the allergy/intolerance was first identified." /> <mustSupport value="true" /> </element> <element id="AllergyIntolerance.recordedDate"> <path value="AllergyIntolerance.recordedDate" /> <comment value="Date the first version of the resource instance was recorded." /> <mustSupport value="true" /> </element> <element id="AllergyIntolerance.asserter"> <path value="AllergyIntolerance.asserter" /> <type> <code value="Reference" /> <targetProfile value="https://intrahealth.com/fhir/mert/StructureDefinition/PractitionerMERT" /> </type> <mustSupport value="true" /> </element> <element id="AllergyIntolerance.note"> <path value="AllergyIntolerance.note" /> <comment value="Additional information about the allergy/intolerance not captured in structured fields." /> <mustSupport value="true" /> </element> <element id="AllergyIntolerance.reaction"> <path value="AllergyIntolerance.reaction" /> <comment value="Details about adverse reaction events linked to exposure." /> <mustSupport value="true" /> </element> <element id="AllergyIntolerance.reaction.substance"> <path value="AllergyIntolerance.reaction.substance" /> <comment value="Specific substance or product responsible for the reaction (base example binding)." /> </element> <element id="AllergyIntolerance.reaction.manifestation"> <path value="AllergyIntolerance.reaction.manifestation" /> <comment value="Clinical signs or symptoms associated with the reaction. Prefer SNOMED CT when available." /> <mustSupport value="true" /> </element> <element id="AllergyIntolerance.reaction.description"> <path value="AllergyIntolerance.reaction.description" /> <comment value="Narrative description of the reaction event." /> </element> <element id="AllergyIntolerance.reaction.onset"> <path value="AllergyIntolerance.reaction.onset" /> <comment value="Date/time when reaction manifestations occurred." /> </element> <element id="AllergyIntolerance.reaction.severity"> <path value="AllergyIntolerance.reaction.severity" /> <comment value="Severity of the reaction event (mild | moderate | severe). Uses base required binding." /> <mustSupport value="true" /> </element> <element id="AllergyIntolerance.reaction.exposureRoute"> <path value="AllergyIntolerance.reaction.exposureRoute" /> <comment value="Route of exposure (e.g., oral, inhaled). Prefer SNOMED CT route codes when available." /> </element> <element id="AllergyIntolerance.reaction.note"> <path value="AllergyIntolerance.reaction.note" /> <comment value="Additional text about the reaction not captured elsewhere." /> </element> </differential> </StructureDefinition>