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
[base]/Observation?deviceUseStartTiming=(comparator)[date]
Details
| Resource | Code | Type | FhirPath | Xpath (Normal) |
| Observation | deviceUseStartTiming | date | Observation.extension.where(url = 'https://simplifier.net/pghd-cdmtofhir/pghdcdmdeviceusestarttimingextension').value | f:Observation/f:extension[@url='https://simplifier.net/pghd-cdmtofhir/pghdcdmdeviceusestarttimingextension']/f:valueDate |