FQL is a query language that allows you to retrieve, filter and project data from any data source containing FHIR Resources. It brings the power of three existing languages together: SQL, JSON and FhirPath. It allows you to create tables and is useful for gaining insight and perform quality control.
| Name | Flags | Card. | Type | Description & Constraints |
|---|---|---|---|---|
  Extension | 1..1 | |||
  extension (requestor) | ||||
 url | "requestor" | |||
  value[x] | 1..1 | Reference(Practitioner) | ||
| extension (service) | ||||
| url | "service" | |||
 value[x] | 1..1 | CodeableConcept | Binding: http://hl7.org/fhir/ValueSet/all-of-snomed (preferred) | |
| url | "http://example.org/fhir/StructureDefinition/referral" | |||
| value[x] | 0..0 | |||
| Documentation for this format | ||||