An example to demonstrate using the bodyPosition and delta extensions

@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 sct: <http://snomed.info/id/> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

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

[a fhir:Observation ;
  fhir:nodeRole fhir:treeRoot ;
  fhir:id [ fhir:v "map-sitting"] ; # 
  fhir:text [
     fhir:status [ fhir:v "extensions" ] ;
     fhir:div "<div xmlns=\"http://www.w3.org/1999/xhtml\"><p><b>Generated Narrative: Observation</b><a name=\"map-sitting\"> </a></p><div style=\"display: inline-block; background-color: #d9e0e7; padding: 6px; margin: 4px; border: 1px solid #8da1b4; border-radius: 5px; line-height: 60%\"><p style=\"margin-bottom: 0px\">Resource Observation &quot;map-sitting&quot; </p></div><p><b>Observation Body Position</b>: Sitting position (finding) <span style=\"background: LightGoldenRodYellow; margin: 4px; border: 1px solid khaki\"> (<a href=\"https://browser.ihtsdotools.org/\">SNOMED CT</a>#33586001)</span></p><p><b>Observation Delta</b>: Decreased (qualifier value) <span style=\"background: LightGoldenRodYellow; margin: 4px; border: 1px solid khaki\"> (<a href=\"https://browser.ihtsdotools.org/\">SNOMED CT</a>#1250004)</span></p><p><b>status</b>: final</p><p><b>category</b>: Laboratory <span style=\"background: LightGoldenRodYellow; margin: 4px; border: 1px solid khaki\"> (<a href=\"http://terminology.hl7.org/5.1.0/CodeSystem-observation-category.html\">Observation Category Codes</a>#laboratory)</span></p><p><b>code</b>: Mean blood pressure <span style=\"background: LightGoldenRodYellow; margin: 4px; border: 1px solid khaki\"> (<a href=\"https://loinc.org/\">LOINC</a>#8478-0)</span></p><p><b>subject</b>: <a href=\"patient-example.html\">Patient/example</a> &quot;Peter CHALMERS&quot;</p><p><b>encounter</b>: <a href=\"encounter-example.html\">Encounter/example</a></p><p><b>effective</b>: 2018-04-02T10:30:10+01:00 --&gt; 2018-04-05T10:30:10+01:00</p><p><b>issued</b>: 4 Apr 2018, 12:30:10 am</p><p><b>value</b>: 60 mm Hg<span style=\"background: LightGoldenRodYellow\"> (Details: UCUM code mm[Hg] = 'mmHg')</span></p><p><b>interpretation</b>: Below low normal <span style=\"background: LightGoldenRodYellow; margin: 4px; border: 1px solid khaki\"> (v2-0078#L &quot;Low&quot;)</span></p></div>"
  ] ; #   	To be used only when the body position in not precoordinated in the observation code.  
  fhir:extension ( [
     fhir:url [ fhir:v "http://hl7.org/fhir/StructureDefinition/observation-bodyPosition"^^xsd:anyURI ] ;
     fhir:value [
       a fhir:CodeableConcept ;
       fhir:coding ( [
         a sct:33586001 ;
         fhir:system [ fhir:v "http://snomed.info/sct"^^xsd:anyURI ] ;
         fhir:code [ fhir:v "33586001" ] ;
         fhir:display [ fhir:v "Sitting position (finding)" ]
       ] )
     ]
  ] [
     fhir:url [ fhir:v "http://hl7.org/fhir/StructureDefinition/observation-delta"^^xsd:anyURI ] ;
     fhir:value [
       a fhir:CodeableConcept ;
       fhir:coding ( [
         a sct:1250004 ;
         fhir:system [ fhir:v "http://snomed.info/sct"^^xsd:anyURI ] ;
         fhir:code [ fhir:v "1250004" ] ;
         fhir:display [ fhir:v "Decreased (qualifier value)" ]
       ] )
     ]
  ] ) ; # 
  fhir:status [ fhir:v "final"] ; # 
  fhir:category ( [
     fhir:coding ( [
       fhir:system [ fhir:v "http://terminology.hl7.org/CodeSystem/observation-category"^^xsd:anyURI ] ;
       fhir:code [ fhir:v "laboratory" ] ;
       fhir:display [ fhir:v "Laboratory" ]
     ] )
  ] ) ; # 
  fhir:code [
     fhir:coding ( [
       a loinc:8478-0 ;
       fhir:system [ fhir:v "http://loinc.org"^^xsd:anyURI ] ;
       fhir:code [ fhir:v "8478-0" ] ;
       fhir:display [ fhir:v "Mean blood pressure" ]
     ] )
  ] ; # 
  fhir:subject [
     fhir:reference [ fhir:v "Patient/example" ]
  ] ; # 
  fhir:encounter [
     fhir:reference [ fhir:v "Encounter/example" ]
  ] ; # 
  fhir:effective [
     a fhir:Period ;
     fhir:start [ fhir:v "2018-04-02T10:30:10+01:00"^^xsd:dateTime ] ;
     fhir:end [ fhir:v "2018-04-05T10:30:10+01:00"^^xsd:dateTime ]
  ] ; # 
  fhir:issued [ fhir:v "2018-04-03T15:30:10+01:00"^^xsd:dateTime] ; # 
  fhir:value [
     a fhir:Quantity ;
     fhir:value [ fhir:v "60"^^xsd:decimal ] ;
     fhir:unit [ fhir:v "mm Hg" ] ;
     fhir:system [ fhir:v "http://unitsofmeasure.org"^^xsd:anyURI ] ;
     fhir:code [ fhir:v "mm[Hg]" ]
  ] ; # 
  fhir:interpretation ( [
     fhir:coding ( [
       fhir:system [ fhir:v "http://terminology.hl7.org/CodeSystem/v2-0078"^^xsd:anyURI ] ;
       fhir:code [ fhir:v "L" ] ;
       fhir:display [ fhir:v "Low" ]
     ] ) ;
     fhir:text [ fhir:v "Below low normal" ]
  ] )] . # 

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