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

## : Heart rate rhythm clinical result observation example - JSON Representation

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    {
      "resourceType" : "Observation",
      "id" : "clinical-result-heart-rate-rhythm",
      "meta" : {
        "extension" : [
          {
            "url" : "http://hl7.org/fhir/StructureDefinition/instance-name",
            "valueString" : "Heart rate rhythm Example"
          },
          {
            "url" : "http://hl7.org/fhir/StructureDefinition/instance-description",
            "valueMarkdown" : "This is a Heart rate rhythm Example for the *Clinical Result Observation Profile*."
          }
        ],
        "profile" : [
          🔗 "http://fhir.org/guides/onc/us-quality-core/StructureDefinition/us-quality-core-observation-clinical-result"
        ]
      },
      "text" : {
        "status" : "generated",
        "div" : "<div xmlns=\"http://www.w3.org/1999/xhtml\"><p class=\"res-header-id\"><b>Generated Narrative: Observation clinical-result-heart-rate-rhythm</b></p><a name=\"clinical-result-heart-rate-rhythm\"> </a><a name=\"hcclinical-result-heart-rate-rhythm\"> </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-observation-clinical-result.html\">US Quality Core Observation Clinical Result</a></p></div><p><b>status</b>: Final</p><p><b>category</b>: <span title=\"Codes:{http://terminology.hl7.org/CodeSystem/observation-category exam}\">Exam</span></p><p><b>code</b>: <span title=\"Codes:{http://loinc.org 8884-9}\">Heart rate rhythm</span></p><p><b>subject</b>: <a href=\"Patient-example.html\">Jim Chalmers  Male, DoB: 1974-12-25 ( Social Security number\u00a0(use:\u00a0usual,\u00a0period:\u00a02001-05-06 --&gt; (ongoing)))</a></p><p><b>encounter</b>: Cardiology Consult</p><p><b>effective</b>: 2021-11-10 16:48:57-0800</p><p><b>performer</b>: <a href=\"Practitioner-example.html\">Practitioner</a></p><p><b>value</b>: Regular (R)</p></div>"
      },
      "status" : "final",
      "category" : [
        {
          "coding" : [
            {
              "system" : "http://terminology.hl7.org/CodeSystem/observation-category",
              "code" : "exam",
              "display" : "Exam"
            }
          ],
          "text" : "Exam"
        }
      ],
      "code" : {
        "coding" : [
          {
            "system" : "http://loinc.org",
            "code" : "8884-9",
            "display" : "Heart rate rhythm"
          }
        ],
        "text" : "Heart rate rhythm"
      },
      "subject" : {
        🔗 "reference" : "Patient/example"
      },
      "encounter" : {
        "display" : "Cardiology Consult"
      },
      "effectiveDateTime" : "2021-11-10T16:48:57.246958-08:00",
      "performer" : [
        {
          🔗 "reference" : "Practitioner/example",
          "display" : "Practitioner"
        }
      ],
      "valueString" : "Regular (R)"
    }