f:ServiceRequest extension with URL = 'https://ssv.uz/fhir/StructureDefinition/UZBaseExtensionServiceRequestPhase': maximum cardinality of 'extension' is 1 identifier: minimum cardinality of 'identifier' is 1 category: minimum cardinality of 'category' is 1 category: maximum cardinality of 'category' is 1 requester: minimum cardinality of 'requester' is 1