description: This profile defines the UK constraints and extensions on the International FHIR resource [OrganizationAffiliation](https://hl7.org/fhir/R4/OrganizationAffiliation.html). package_name: fhir.r4.ukcore.stu3.currentbuild derivation: constraint name: UKCoreOrganizationAffiliation type: OrganizationAffiliation elements: active: {mustSupport: true, index: 0} organization: {mustSupport: true, index: 1} participatingOrganization: {mustSupport: true, index: 2} specialty: binding: {strength: extensible, valueSet: 'https://fhir.hl7.org.uk/ValueSet/UKCore-PracticeSettingCode'} index: 3 package_version: 0.0.19-pre-release class: profile kind: resource url: https://fhir.hl7.org.uk/StructureDefinition/UKCore-OrganizationAffiliation base: http://hl7.org/fhir/StructureDefinition/OrganizationAffiliation version: 0.0.1