unsolicited-observations description Unsolicited transmission of an observation message eventCoding category category notification focus code profile min max DiagnosticReporthttps://fhir.hl7.org.uk/StructureDefinition/UKCore-DiagnosticReport0* Observationhttps://fhir.nhs.uk/StructureDefinition/NHSDigital-Observation1* Patienthttps://fhir.nhs.uk/StructureDefinition/NHSDigital-Patient11 PractitionerRolehttps://fhir.nhs.uk/StructureDefinition/NHSDigital-PractitionerRole0*