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 - XML Representation

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