2026 US Quality Core Implementation Guide
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2026 US Quality Core Implementation Guide - Local Development build (v0.5.0) built by the FHIR (HL7® FHIR® Standard) Build Tools. See the Directory of published versions

: Observation example - TTL Representation

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@prefix fhir: <http://hl7.org/fhir/> .
@prefix loinc: <http://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 -------------------------------------------------------------------

<http://hl7.org/fhir/Observation/example> a fhir:Observation ;
  fhir:nodeRole fhir:treeRoot ;
  fhir:Resource.id [ fhir:value "example"] ;
  fhir:Resource.meta [
     fhir:Meta.profile [
       fhir:value "http://fhir.org/guides/onc/us-quality-core/StructureDefinition/us-quality-core-simple-observation" ;
       fhir:index 0 ;
       fhir:link <http://fhir.org/guides/onc/us-quality-core/StructureDefinition/us-quality-core-simple-observation>
     ]
  ] ;
  fhir:DomainResource.text [
     fhir:Narrative.status [ fhir:value "extensions" ] ;
     fhir:Narrative.div "<div xmlns=\"http://www.w3.org/1999/xhtml\"><p class=\"res-header-id\"><b>Generated Narrative: Observation example</b></p><a name=\"example\"> </a><a name=\"hcexample\"> </a><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\"/><p style=\"margin-bottom: 0px\">Profile: <a href=\"StructureDefinition-us-quality-core-simple-observation.html\">US Quality Core Simple Observation</a></p></div><p><b>Observation Body Position</b>: <span title=\"Codes:{http://snomed.info/sct 33586001}\">Sitting position (finding)</span></p><p><b>status</b>: Final</p><p><b>category</b>: <span title=\"Codes:{http://terminology.hl7.org/CodeSystem/observation-category vital-signs}\">Vital Signs</span></p><p><b>code</b>: <span title=\"Codes:{http://loinc.org 30350-3}\">Hemoglobin [Mass/volume] in Venous blood</span></p><p><b>subject</b>: <a href=\"Patient-example.html\">Jim Chalmers  Male, DoB: 1974-12-25 ( Social Security number (use: usual, period: 2001-05-06 --&gt; (ongoing)))</a></p><p><b>encounter</b>: <a href=\"Encounter-example.html\">Encounter: identifier = http://example.org/encounters#ENC-20130404-appendicitis; status = finished; class = inpatient encounter (ActCode#IMP); type = Initial hospital inpatient or observation care, per day, for the evaluation and management of a patient, which requires a medically appropriate history and/or examination and high level of medical decision making. When using total time on the date of the encounter for code selection, 75 minutes must be met or exceeded.; period = 2013-04-04 18:00:00-0400 --&gt; 2013-04-06 11:00:00-0400</a></p><p><b>effective</b>: 2013-04-02 10:30:10+0100 --&gt; 2013-04-05 10:30:10+0100</p><p><b>issued</b>: 2013-04-03 15:30:10+0100</p><p><b>performer</b>: <a href=\"Practitioner-example.html\">Practitioner</a></p><p><b>value</b>: 7.2 g/dl<span style=\"background: LightGoldenRodYellow\"> (Details: UCUM  codeg/dL = 'g/dL')</span></p><p><b>interpretation</b>: <span title=\"Codes:{http://terminology.hl7.org/CodeSystem/v3-ObservationInterpretation L}\">Below low normal</span></p><p><b>bodySite</b>: <span title=\"Codes:{http://snomed.info/sct 308046002}\">Superficial forearm vein</span></p><p><b>method</b>: <span title=\"Codes:{http://snomed.info/sct 120220003}\">Injection to forearm</span></p><p><b>derivedFrom</b>: <a href=\"Observation-example.html\">Observation Hemoglobin [Mass/volume] in Venous blood</a></p><blockquote><p><b>component</b></p><p><b>code</b>: <span title=\"Codes:{http://loinc.org 8480-6}, {http://snomed.info/sct 271649006}\">Systolic blood pressure</span></p><p><b>value</b>: 107 mmHg<span style=\"background: LightGoldenRodYellow\"> (Details: UCUM  codemm[Hg] = 'mm[Hg]')</span></p><p><b>interpretation</b>: <span title=\"Codes:{http://terminology.hl7.org/CodeSystem/v3-ObservationInterpretation N}\">Normal</span></p></blockquote><blockquote><p><b>component</b></p><p><b>code</b>: <span title=\"Codes:{http://loinc.org 8462-4}\">Diastolic blood pressure</span></p><p><b>value</b>: 60 mmHg<span style=\"background: LightGoldenRodYellow\"> (Details: UCUM  codemm[Hg] = 'mm[Hg]')</span></p><p><b>interpretation</b>: <span title=\"Codes:{http://terminology.hl7.org/CodeSystem/v3-ObservationInterpretation L}\">Below low normal</span></p></blockquote></div>"
  ] ;
  fhir:DomainResource.extension [
     fhir:index 0 ;
     fhir:Extension.url [ fhir:value "http://hl7.org/fhir/StructureDefinition/observation-bodyPosition" ] ;
     fhir:Extension.valueCodeableConcept [
       fhir:CodeableConcept.coding [
         fhir:index 0 ;
         a sct:33586001 ;
         fhir:Coding.system [ fhir:value "http://snomed.info/sct" ] ;
         fhir:Coding.code [ fhir:value "33586001" ] ;
         fhir:Coding.display [ fhir:value "Sitting position (finding)" ]
       ]
     ]
  ] ;
  fhir:Observation.status [ fhir:value "final"] ;
  fhir:Observation.category [
     fhir:index 0 ;
     fhir:CodeableConcept.coding [
       fhir:index 0 ;
       fhir:Coding.system [ fhir:value "http://terminology.hl7.org/CodeSystem/observation-category" ] ;
       fhir:Coding.code [ fhir:value "vital-signs" ] ;
       fhir:Coding.display [ fhir:value "Vital Signs" ]
     ]
  ] ;
  fhir:Observation.code [
     fhir:CodeableConcept.coding [
       fhir:index 0 ;
       a loinc:30350-3 ;
       fhir:Coding.system [ fhir:value "http://loinc.org" ] ;
       fhir:Coding.code [ fhir:value "30350-3" ] ;
       fhir:Coding.display [ fhir:value "Hemoglobin [Mass/volume] in Venous blood" ]
     ]
  ] ;
  fhir:Observation.subject [
     fhir:link <http://hl7.org/fhir/Patient/example> ;
     fhir:Reference.reference [ fhir:value "Patient/example" ]
  ] ;
  fhir:Observation.encounter [
     fhir:link <http://hl7.org/fhir/Encounter/example> ;
     fhir:Reference.reference [ fhir:value "Encounter/example" ]
  ] ;
  fhir:Observation.effectivePeriod [
     fhir:Period.start [ fhir:value "2013-04-02T10:30:10+01:00"^^xsd:dateTime ] ;
     fhir:Period.end [ fhir:value "2013-04-05T10:30:10+01:00"^^xsd:dateTime ]
  ] ;
  fhir:Observation.issued [ fhir:value "2013-04-03T15:30:10+01:00"^^xsd:dateTime] ;
  fhir:Observation.performer [
     fhir:index 0 ;
     fhir:link <http://hl7.org/fhir/Practitioner/example> ;
     fhir:Reference.reference [ fhir:value "Practitioner/example" ] ;
     fhir:Reference.display [ fhir:value "Practitioner" ]
  ] ;
  fhir:Observation.valueQuantity [
     fhir:Quantity.value [ fhir:value "7.2"^^xsd:decimal ] ;
     fhir:Quantity.unit [ fhir:value "g/dl" ] ;
     fhir:Quantity.system [ fhir:value "http://unitsofmeasure.org" ] ;
     fhir:Quantity.code [ fhir:value "g/dL" ]
  ] ;
  fhir:Observation.interpretation [
     fhir:index 0 ;
     fhir:CodeableConcept.coding [
       fhir:index 0 ;
       fhir:Coding.system [ fhir:value "http://terminology.hl7.org/CodeSystem/v3-ObservationInterpretation" ] ;
       fhir:Coding.code [ fhir:value "L" ] ;
       fhir:Coding.display [ fhir:value "Low" ]
     ] ;
     fhir:CodeableConcept.text [ fhir:value "Below low normal" ]
  ] ;
  fhir:Observation.bodySite [
     fhir:CodeableConcept.coding [
       fhir:index 0 ;
       a sct:308046002 ;
       fhir:Coding.system [ fhir:value "http://snomed.info/sct" ] ;
       fhir:Coding.code [ fhir:value "308046002" ] ;
       fhir:Coding.display [ fhir:value "Superficial forearm vein" ]
     ]
  ] ;
  fhir:Observation.method [
     fhir:CodeableConcept.coding [
       fhir:index 0 ;
       a sct:120220003 ;
       fhir:Coding.system [ fhir:value "http://snomed.info/sct" ] ;
       fhir:Coding.code [ fhir:value "120220003" ] ;
       fhir:Coding.display [ fhir:value "Injection to forearm" ]
     ]
  ] ;
  fhir:Observation.derivedFrom [
     fhir:index 0 ;
     fhir:link <http://hl7.org/fhir/Observation/example> ;
     fhir:Reference.reference [ fhir:value "Observation/example" ]
  ] ;
  fhir:Observation.component [
     fhir:index 0 ;
     fhir:Observation.component.code [
       fhir:CodeableConcept.coding [
         fhir:index 0 ;
         a loinc:8480-6 ;
         fhir:Coding.system [ fhir:value "http://loinc.org" ] ;
         fhir:Coding.code [ fhir:value "8480-6" ] ;
         fhir:Coding.display [ fhir:value "Systolic blood pressure" ]
       ], [
         fhir:index 1 ;
         a sct:271649006 ;
         fhir:Coding.system [ fhir:value "http://snomed.info/sct" ] ;
         fhir:Coding.code [ fhir:value "271649006" ] ;
         fhir:Coding.display [ fhir:value "Systolic blood pressure" ]
       ]
     ] ;
     fhir:Observation.component.valueQuantity [
       fhir:Quantity.value [ fhir:value "107"^^xsd:decimal ] ;
       fhir:Quantity.unit [ fhir:value "mmHg" ] ;
       fhir:Quantity.system [ fhir:value "http://unitsofmeasure.org" ] ;
       fhir:Quantity.code [ fhir:value "mm[Hg]" ]
     ] ;
     fhir:Observation.component.interpretation [
       fhir:index 0 ;
       fhir:CodeableConcept.coding [
         fhir:index 0 ;
         fhir:Coding.system [ fhir:value "http://terminology.hl7.org/CodeSystem/v3-ObservationInterpretation" ] ;
         fhir:Coding.code [ fhir:value "N" ] ;
         fhir:Coding.display [ fhir:value "Normal" ]
       ] ;
       fhir:CodeableConcept.text [ fhir:value "Normal" ]
     ]
  ], [
     fhir:index 1 ;
     fhir:Observation.component.code [
       fhir:CodeableConcept.coding [
         fhir:index 0 ;
         a loinc:8462-4 ;
         fhir:Coding.system [ fhir:value "http://loinc.org" ] ;
         fhir:Coding.code [ fhir:value "8462-4" ] ;
         fhir:Coding.display [ fhir:value "Diastolic blood pressure" ]
       ]
     ] ;
     fhir:Observation.component.valueQuantity [
       fhir:Quantity.value [ fhir:value "60"^^xsd:decimal ] ;
       fhir:Quantity.unit [ fhir:value "mmHg" ] ;
       fhir:Quantity.system [ fhir:value "http://unitsofmeasure.org" ] ;
       fhir:Quantity.code [ fhir:value "mm[Hg]" ]
     ] ;
     fhir:Observation.component.interpretation [
       fhir:index 0 ;
       fhir:CodeableConcept.coding [
         fhir:index 0 ;
         fhir:Coding.system [ fhir:value "http://terminology.hl7.org/CodeSystem/v3-ObservationInterpretation" ] ;
         fhir:Coding.code [ fhir:value "L" ] ;
         fhir:Coding.display [ fhir:value "Low" ]
       ] ;
       fhir:CodeableConcept.text [ fhir:value "Below low normal" ]
     ]
  ] .

<http://hl7.org/fhir/Patient/example> a fhir:Patient .

<http://hl7.org/fhir/Encounter/example> a fhir:Encounter .

<http://hl7.org/fhir/Practitioner/example> a fhir:Practitioner .

# - ontology header ------------------------------------------------------------

<http://hl7.org/fhir/Observation/example.ttl> a owl:Ontology ;
  owl:imports fhir:fhir.ttl ;
  owl:versionIRI <http://build.fhir.org/Observation/example.ttl> .