2026 US Quality Core Implementation Guide
0.5.0 - cibuild US

2026 US Quality Core Implementation Guide, published by Office of the National Coordinator for Health Information Technology (ONC). This guide is not an authorized publication; it is the continuous build for version 0.5.0 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/FHIR/us-quality-core/ and changes regularly. See the Directory of published versions

## : ImagingStudy example - TTL Representation

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    @prefix fhir: <http://hl7.org/fhir/> .
    @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 sct: <http://snomed.info/id/> .
    @prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

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

     a fhir:ImagingStudy ;
      fhir:nodeRole fhir:treeRoot ;
      fhir:id [ fhir:v "example"] ; #
      fhir:meta [
        ( fhir:profile [
    fhir:v "http://fhir.org/guides/onc/us-quality-core/StructureDefinition/us-quality-core-imagingstudy"^^xsd:anyURI ;
    fhir:l <http://fhir.org/guides/onc/us-quality-core/StructureDefinition/us-quality-core-imagingstudy>     ] )
      ] ; #
      fhir:text [
    fhir:status [ fhir:v "generated" ] ;
    fhir:div [ fhir:v "<div xmlns=\"http://www.w3.org/1999/xhtml\">\n      <p><strong>CT Chest. John Smith (MRN: 09236). Accession: W12342398. Performed: 2011-01-01. 3 series, 12 images.</strong></p>\n      <p>\n        <strong>uid</strong>: urn:oid:2.16.124.113543.6003.1154777499.30246.19789.3503430045\n      </p>\n      <p>\n        <strong>patient</strong>:\n        <a href=\"Patient-example.html\">Patient/example</a>\n      </p>\n      <p>\n        <strong>started</strong>: 01/01/2011\n      </p>\n      <p>\n        <strong>numberOfSeries</strong>: 1\n      </p>\n      <p>\n        <strong>numberOfInstances</strong>: 1\n      </p>\n      <blockquote>\n        <p><strong>series</strong></p>\n        <p>\n          <strong>uid</strong>: urn:oid:2.16.124.113543.6003.2588828330.45298.17418.2723805630\n        </p>\n        <p>\n          <strong>number</strong>: 3\n        </p>\n        <p>\n          <strong>modality</strong>: CT\n        </p>\n        <p>\n          <strong>description</strong>: CT Surview 180\n        </p>\n        <p>\n          <strong>numberOfInstances</strong>: 1\n        </p>\n        <p>\n          <strong>bodySite</strong>: { SNOMED CT code '67734004' = 'Upper Trunk Structure' })\n        </p>\n        <blockquote>\n          <p><strong>instance</strong></p>\n          <p>\n            <strong>uid</strong>: urn:oid:2.16.124.113543.6003.189642796.63084.16748.2599092903\n          </p>\n          <p>\n            <strong>number</strong>: 1\n          </p>\n          <p>\n            <strong>sopClass</strong>: urn:oid:1.2.840.10008.5.1.4.1.1.2\n          </p>\n        </blockquote>\n      </blockquote>\n    </div>"^^rdf:XMLLiteral ]
      ] ; #
      fhir:status [ fhir:v "available"] ; #
      fhir:subject [
    fhir:l fhir:Patient/example ;
    fhir:reference [ fhir:v "Patient/example" ]
      ] ; #
      fhir:started [ fhir:v "2011-01-01T11:01:20+03:00"^^xsd:dateTime] ; #
      fhir:numberOfSeries [ fhir:v "1"^^xsd:nonNegativeInteger] ; #
      fhir:numberOfInstances [ fhir:v "1"^^xsd:nonNegativeInteger] ; #
      fhir:series ( [
    fhir:uid [ fhir:v "2.16.124.113543.6003.2588828330.45298.17418.2723805630" ] ;
    fhir:number [ fhir:v "3"^^xsd:nonNegativeInteger ] ;
    fhir:modality [
    fhir:system [
    fhir:v "http://dicom.nema.org/resources/ontology/DCM"^^xsd:anyURI ;
    fhir:l <http://dicom.nema.org/resources/ontology/DCM>       ] ;
    fhir:code [ fhir:v "CT" ]     ] ;
    fhir:description [ fhir:v "CT Surview 180" ] ;
    fhir:numberOfInstances [ fhir:v "1"^^xsd:nonNegativeInteger ] ;
    fhir:bodySite [
    a sct:67734004 ;
    fhir:system [
    fhir:v "http://snomed.info/sct"^^xsd:anyURI ;
    fhir:l <http://snomed.info/sct>       ] ;
    fhir:code [ fhir:v "67734004" ] ;
    fhir:display [ fhir:v "Upper Trunk Structure" ]     ] ;
        ( fhir:performer [
    fhir:function [
            ( fhir:coding [
    fhir:system [
    fhir:v "http://terminology.hl7.org/CodeSystem/v3-ParticipationType"^^xsd:anyURI ;
    fhir:l <http://terminology.hl7.org/CodeSystem/v3-ParticipationType>           ] ;
    fhir:code [ fhir:v "PRF" ] ;
    fhir:display [ fhir:v "performer" ]         ] )       ] ;
    fhir:actor [
    fhir:l fhir:Practitioner/example ;
    fhir:reference [ fhir:v "Practitioner/example" ]       ]     ] )
      ] ) . #