description: Flag indicating if the specialty is the primary specialty of the provider. Normally, a practitioner will have one primary specialty, but in some cases more than one can be primary. package_name: hl7.fhir.core derivation: constraint name: primaryInd type: Extension elements: extension: {index: 0} url: type: uri pattern: {type: Uri, value: 'http://hl7.org/fhir/StructureDefinition/organizationaffiliation-primaryInd'} index: 1 valueBoolean: {type: boolean, index: 2} package_version: 3.5.0 extensions: {} class: extension kind: complex-type url: http://hl7.org/fhir/StructureDefinition/organizationaffiliation-primaryInd base: http://hl7.org/fhir/StructureDefinition/Extension version: null