description: This Extention sets minimum expectations for the Brandname element to searching for and fetching a Brandname associated with vaccine. package_name: ndhm.in derivation: constraint name: BrandName type: Extension elements: url: pattern: {type: Uri, value: 'https://nrces.in/ndhm/fhir/r4/StructureDefinition/BrandName'} index: 0 value: choices: [valueString] index: 2 valueString: {type: string, choiceOf: value, index: 3} package_version: 3.0.1 class: extension kind: complex-type url: https://nrces.in/ndhm/fhir/r4/StructureDefinition/BrandName base: http://hl7.org/fhir/StructureDefinition/Extension version: 3.0.1