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="Linksatrialer-Druck" /> <meta> <profile value="https://gematik.de/fhir/isik/StructureDefinition/sd-mii-icu-linksatrialer-druck" /> </meta> <status value="final" /> <category> <coding> <system value="http://terminology.hl7.org/CodeSystem/observation-category" /> <code value="vital-signs" /> </coding> </category> <code> <coding> <system value="http://snomed.info/sct" /> <code value="75367002" /> </coding> <coding> <system value="http://snomed.info/sct" /> <code value="276760007" /> <display value="Left atrial pressure" /> </coding> <coding> <system value="http://loinc.org" /> <code value="60988-3" /> <display value="Left atrial pressure" /> </coding> <coding> <system value="urn:iso:std:iso:11073:10101" /> <code value="150064" /> <display value="MDC_PRESS_BLD_ATR_LEFT" /> </coding> </code> <subject> <reference value="Patient/PatientinMusterfrau" /> </subject> <effectiveDateTime value="2019-12-23T09:30:10+01:00" /> <bodySite> <coding> <system value="http://snomed.info/sct" /> <code value="82471001" /> <display value="Left atrial structure" /> </coding> </bodySite> <component> <code> <coding> <system value="http://loinc.org" /> <code value="8480-6" /> </coding> <coding> <system value="urn:iso:std:iso:11073:10101" /> <code value="150065" /> <display value="Systolic left atrial pressure" /> </coding> <coding> <system value="http://loinc.org" /> <code value="60989-1" /> <display value="Left atrial pressure Systolic" /> </coding> </code> <valueQuantity> <value value="8" /> <unit value="millimeter Mercury column" /> <system value="http://unitsofmeasure.org" /> <code value="mm[Hg]" /> </valueQuantity> </component> <component> <code> <coding> <system value="http://loinc.org" /> <code value="8478-0" /> </coding> <coding> <system value="urn:iso:std:iso:11073:10101" /> <code value="150067" /> <display value="Mean left atrial pressure" /> </coding> <coding> <system value="http://loinc.org" /> <code value="8399-8" /> <display value="Left atrial Intrachamber mean pressure" /> </coding> </code> <valueQuantity> <value value="6" /> <unit value="millimeter Mercury column" /> <system value="http://unitsofmeasure.org" /> <code value="mm[Hg]" /> </valueQuantity> </component> <component> <code> <coding> <system value="http://loinc.org" /> <code value="8462-4" /> </coding> <coding> <system value="urn:iso:std:iso:11073:10101" /> <code value="150066" /> <display value="Diastolic left atrial pressure" /> </coding> <coding> <system value="http://loinc.org" /> <code value="75933-2" /> <display value="Left atrial pressure Diastolic" /> </coding> </code> <valueQuantity> <value value="4" /> <unit value="millimeter Mercury column" /> <system value="http://unitsofmeasure.org" /> <code value="mm[Hg]" /> </valueQuantity> </component> </Observation>