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.
Invocations
URL: [base]/$closure
Parameters (In)
| Name | Cardinality | Type | Documentation |
| name | 1..1 | String | The name that defines the particular context for the subsumption based closure table |
| concept | 0..* | Coding | Concepts to add to the closure table |
| version | 0..1 | Id | A request to resynchronise - request to send all new entries since the nominated version was sent by the server |
Return Values (Out)
| Name | Cardinality | Type | Documentation |
| return | 1..1 | ConceptMap | A list of new entries (code / system --> code/system) that the client should add to its closure table. The only kind of entry mapping equivalences that can be returned are equal, specializes, subsumes and unmatched |