description: This extension identifies a profile the system will recognize if it is declared in [`meta.profile`](resource.html#profile-tags). If the system supports the [`_profile`](search.html#profile) search parameter, it will be capable of searching on the profile. The system may support validation against the profile. package_name: hl7.fhir.uv.extensions derivation: constraint name: CSDeclaredProfile type: Extension elements: extension: {index: 0} url: pattern: {type: Uri, value: 'http://hl7.org/fhir/StructureDefinition/capabilitystatement-declared-profile'} index: 1 value: choices: [valueCanonical] index: 3 valueCanonical: {type: canonical, choiceOf: value, index: 4} package_version: 5.1.0 extensions: {} class: extension kind: complex-type url: http://hl7.org/fhir/StructureDefinition/capabilitystatement-declared-profile base: http://hl7.org/fhir/StructureDefinition/Extension version: 5.1.0 required: [valueCanonical, value]