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.
<Observation xmlns="http://hl7.org/fhir"> <id value="PathogenDetection-CT-example" /> <meta> <profile value="https://demis.rki.de/fhir/StructureDefinition/PathogenDetectionCVDP" /> </meta> <status value="final" /> <category> <coding> <system value="http://terminology.hl7.org/CodeSystem/observation-category" /> <code value="laboratory" /> </coding> </category> <code> <coding> <system value="http://loinc.org" /> <code value="96764-6" /> <display value="SARS-CoV-2 (COVID-19) E gene [Cycle Threshold #] in Respiratory specimen by NAA with probe detection" /> </coding> </code> <subject> <reference value="Patient/113de363-be19-46b4-8364-71416c7e662b" /> </subject> <valueString value="30,02" /> <interpretation> <coding> <system value="http://terminology.hl7.org/CodeSystem/v3-ObservationInterpretation" /> <code value="POS" /> </coding> </interpretation> <specimen> <reference value="Specimen/47d61bca-9c53-4422-bb33-3621da084bf4" /> </specimen> </Observation>