description: A complex extension allowing structured capture of the exposure risk of the patient for an adverse reaction (allergy or intolerance) to the specified substance/product. package_name: hl7.fhir.core derivation: constraint name: Exposure risk of adverse reaction (allergy or intolerance) to the specified substance/product type: Extension elements: extension: short: Substance (or pharmaceutical product) comments: It is strongly recommended that this element be populated using a terminology, where possible. For example, some terminologies used include RxNorm, SNOMED CT, DM+D, NDFRT, UNII, and ATC. Plain text should only be used if there is no appropriate terminology available. Additional details can be specified in the text. type: Extension index: 0 slicing: slices: substance: match: {} schema: short: Substance (or pharmaceutical product) comments: It is strongly recommended that this element be populated using a terminology, where possible. For example, some terminologies used include RxNorm, SNOMED CT, DM+D, NDFRT, UNII, and ATC. Plain text should only be used if there is no appropriate terminology available. Additional details can be specified in the text. type: Extension _required: true index: 0 extensions: extension: {url: null, max: 0, index: 1} elements: extension: index: 1 slicing: slices: extension: match: {} schema: {index: 1} max: 0 url: type: uri pattern: {type: Uri, value: substance} index: 2 value: choices: [valueCodeableConcept] index: 4 valueCodeableConcept: {type: CodeableConcept, choiceOf: value, index: 5} required: [value, valueCodeableConcept] exposureRisk: match: {} schema: short: known-reaction-risk | no-known-reaction-risk comments: exposureRisk is a modifier of the substance. type: Extension _required: true index: 6 extensions: extension: {url: null, max: 0, index: 7} elements: extension: index: 7 slicing: slices: extension: match: {} schema: {index: 7} max: 0 url: type: uri pattern: {type: Uri, value: exposureRisk} index: 8 value: choices: [valueCodeableConcept] index: 10 valueCodeableConcept: {type: CodeableConcept, choiceOf: value, index: 11} required: [value, valueCodeableConcept] url: type: uri pattern: {type: Uri, value: 'http://hl7.org/fhir/StructureDefinition/allergyintolerance-substanceExposureRisk'} index: 12 value: choices: [] index: 14 package_version: 1.8.0 extensions: substance: short: Substance (or pharmaceutical product) index: 0 comments: It is strongly recommended that this element be populated using a terminology, where possible. For example, some terminologies used include RxNorm, SNOMED CT, DM+D, NDFRT, UNII, and ATC. Plain text should only be used if there is no appropriate terminology available. Additional details can be specified in the text. type: Extension elements: extension: index: 1 slicing: slices: extension: match: {} schema: {index: 1} max: 0 url: type: uri pattern: {type: Uri, value: substance} index: 2 value: choices: [valueCodeableConcept] index: 4 valueCodeableConcept: {type: CodeableConcept, choiceOf: value, index: 5} _required: true extensions: extension: {url: null, max: 0, index: 1} url: null required: [value, valueCodeableConcept] exposureRisk: short: known-reaction-risk | no-known-reaction-risk index: 6 comments: exposureRisk is a modifier of the substance. type: Extension elements: extension: index: 7 slicing: slices: extension: match: {} schema: {index: 7} max: 0 url: type: uri pattern: {type: Uri, value: exposureRisk} index: 8 value: choices: [valueCodeableConcept] index: 10 valueCodeableConcept: {type: CodeableConcept, choiceOf: value, index: 11} _required: true extensions: extension: {url: null, max: 0, index: 7} url: null required: [value, valueCodeableConcept] class: extension kind: complex-type url: http://hl7.org/fhir/StructureDefinition/allergyintolerance-substanceExposureRisk base: http://hl7.org/fhir/StructureDefinition/Extension version: null required: [extension]