description: This Extension is used to identify a Trade Family or brand associated with a Medication, in particular a Virtual Therapeutic Moiety (VTM). package_name: fhir.r4.ukcore.stu1 derivation: constraint name: ExtensionUKCoreMedicationTradeFamily type: Extension elements: url: pattern: {type: uri, value: 'https://fhir.hl7.org.uk/StructureDefinition/Extension-UKCore-MedicationTradeFamily'} type: uri index: 0 value: short: A code from the SNOMED Clinical Terminology UK coding system to record a Trade Family associated with a Medication choices: [valueCodeableConcept] index: 2 valueCodeableConcept: {type: CodeableConcept, short: A code from the SNOMED Clinical Terminology UK coding system to record a Trade Family associated with a Medication, choiceOf: value, index: 3} package_version: 1.0.4 class: extension kind: complex-type url: https://fhir.hl7.org.uk/StructureDefinition/Extension-UKCore-MedicationTradeFamily base: http://hl7.org/fhir/StructureDefinition/Extension version: 1.0.0 required: [value, valueCodeableConcept]