BMI with links to Height and Weight

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

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

[a fhir:Observation ;
  fhir:nodeRole fhir:treeRoot ;
  fhir:id [ fhir:v "bmi-using-related"] ; # 
  fhir:status [ fhir:v "final"] ; #   ======== need to fix vitals to removed fixed value 'has-member' ==========
#	<meta>
#		<profile value="http://hl7.org/fhir/StructureDefinition/vitalsigns"/>
#	</meta>
#     
  fhir:category ( [
     fhir:coding ( [
       fhir:system [ fhir:v "http://terminology.hl7.org/CodeSystem/observation-category"^^xsd:anyURI ] ;
       fhir:code [ fhir:v "vital-signs" ] ;
       fhir:display [ fhir:v "Vital Signs" ]
     ] ) ;
     fhir:text [ fhir:v "Vital Signs" ]
  ] [
     fhir:coding ( [
       a loinc:39156-5 ;
       fhir:system [ fhir:v "http://loinc.org"^^xsd:anyURI ] ;
       fhir:code [ fhir:v "39156-5" ] ;
       fhir:display [ fhir:v "Body mass index (BMI) [Ratio]" ]
     ] )
  ] ) ; # 
  fhir:code [
     fhir:coding ( [
       a loinc:39156-5 ;
       fhir:system [ fhir:v "http://loinc.org"^^xsd:anyURI ] ;
       fhir:code [ fhir:v "39156-5" ] ;
       fhir:display [ fhir:v "Body mass index (BMI) [Ratio]" ]
     ] ) ;
     fhir:text [ fhir:v "BMI" ]
  ] ; # 
  fhir:subject [
     fhir:reference [ fhir:v "Patient/example" ]
  ] ; # 
  fhir:effective [ fhir:v "1999-07-02"^^xsd:date] ; # 
  fhir:value [
     a fhir:Quantity ;
     fhir:value [ fhir:v "16.2"^^xsd:decimal ] ;
     fhir:unit [ fhir:v "kg/m2" ] ;
     fhir:system [ fhir:v "http://unitsofmeasure.org"^^xsd:anyURI ] ;
     fhir:code [ fhir:v "kg/m2" ]
  ] ; # 
  fhir:derivedFrom ( [
     fhir:reference [ fhir:v "Observation/bodyheight" ] ;
     fhir:display [ fhir:v "Body Height" ]
  ] [
     fhir:reference [ fhir:v "Observation/example" ] ;
     fhir:display [ fhir:v "Body Weight" ]
  ] )] . # 

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