@prefix fhir: <http://hl7.org/fhir/> .
@prefix loinc: <https://loinc.org/rdf/> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

# - resource -------------------------------------------------------------------

<https://gematik.de/fhir/hddt/Observation/example-fev1-reference-value> a fhir:Observation ;
  fhir:nodeRole fhir:treeRoot ;
  fhir:id [ fhir:v "example-fev1-reference-value"] ; # 
  fhir:meta [
     fhir:profile ( [
       fhir:v "https://gematik.de/fhir/hddt/StructureDefinition/hddt-lung-reference-value"^^xsd:anyURI ;
       fhir:l <https://gematik.de/fhir/hddt/StructureDefinition/hddt-lung-reference-value>
     ] )
  ] ; # 
  fhir:status [ fhir:v "final"] ; # 
  fhir:code [
     fhir:coding ( [
       a loinc:20149-1 ;
       fhir:system [
         fhir:v "http://loinc.org"^^xsd:anyURI ;
         fhir:l <http://loinc.org>
       ] ;
       fhir:code [ fhir:v "20149-1" ] ;
       fhir:display [ fhir:v "FEV1 predicted" ]
     ] )
  ] ; # 
  fhir:effective [
     a fhir:Period ;
     fhir:start [ fhir:v "2025-05-01"^^xsd:date ]
  ] ; # 
  fhir:value [
     a fhir:Quantity ;
     fhir:value [ fhir:v 4.5 ] ;
     fhir:unit [ fhir:v "L" ] ;
     fhir:system [
       fhir:v "http://unitsofmeasure.org"^^xsd:anyURI ;
       fhir:l <http://unitsofmeasure.org>
     ] ;
     fhir:code [ fhir:v "L" ]
  ] ; # 
  fhir:method [
     fhir:coding ( [
       fhir:system [
         fhir:v "https://gematik.de/fhir/hddt/CodeSystem/hddt-lung-function-reference-value-method-codes"^^xsd:anyURI ;
         fhir:l <https://gematik.de/fhir/hddt/CodeSystem/hddt-lung-function-reference-value-method-codes>
       ] ;
       fhir:code [ fhir:v "GLI-2022" ]
     ] )
  ] ; # 
  fhir:device [
     fhir:l <https://gematik.de/fhir/hddt/Device/example-device-peak-flow-meter> ;
     fhir:reference [ fhir:v "Device/example-device-peak-flow-meter" ]
  ] . # 

# -------------------------------------------------------------------------------------