US Core Implementation Guide
8.0.1 - STU 8

US Core Implementation Guide, published by HL7 International / Cross-Group Projects. This guide is not an authorized publication; it is the continuous build for version 8.0.1 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/HL7/US-Core/ and changes regularly. See the Directory of published versions

## : Serum Calcium Example - JSON Representation

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    {
      "resourceType" : "Observation",
      "id" : "serum-calcium",
      "meta" : {
        "lastUpdated" : "2005-07-05T15:29:58.597000+00:00",
        "profile" : [
          🔗 "http://hl7.org/fhir/us/core/StructureDefinition/us-core-observation-lab|8.0.1"
        ]
      },
      "text" : {
        "status" : "generated",
        "div" : "<div xmlns=\"http://www.w3.org/1999/xhtml\"><p class=\"res-header-id\"><b>Generated Narrative: Observation serum-calcium</b></p><a name=\"serum-calcium\"> </a><a name=\"hcserum-calcium\"> </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\">Last updated: 2005-07-05 15:29:58+0000</p><p style=\"margin-bottom: 0px\">Profile: <a href=\"StructureDefinition-us-core-observation-lab.html\">US Core Laboratory Result Observation Profileversion: null8.0.1)</a></p></div><p><b>status</b>: Final</p><p><b>category</b>: <span title=\"Codes:{http://terminology.hl7.org/CodeSystem/observation-category laboratory}\">Laboratory</span></p><p><b>code</b>: <span title=\"Codes:{http://loinc.org 17861-6}\">Calcium, Blood</span></p><p><b>subject</b>: <a href=\"Patient-example.html\">Amy Shaw</a></p><p><b>effective</b>: 2005-07-05</p><p><b>performer</b>: <a href=\"Practitioner-practitioner-1.html\">Dr Ronald Bone</a></p><p><b>value</b>: 7.7 mg/dL</p><p><b>interpretation</b>: <span title=\"Codes:{http://terminology.hl7.org/CodeSystem/v3-ObservationInterpretation L}\">Low</span></p><p><b>specimen</b>: <a href=\"Specimen-specimen-example-serum.html\">Serum specimen</a></p><h3>ReferenceRanges</h3><table class=\"grid\"><tr><td style=\"display: none\">-</td><td><b>Low</b></td><td><b>High</b></td><td><b>Type</b></td></tr><tr><td style=\"display: none\">*</td><td>8.5 mg/dL<span style=\"background: LightGoldenRodYellow\"> (Details: UCUM  codemg/dL = 'mg/dL')</span></td><td>10.5 mg/dL<span style=\"background: LightGoldenRodYellow\"> (Details: UCUM  codemg/dL = 'mg/dL')</span></td><td><span title=\"Codes:{http://terminology.hl7.org/CodeSystem/referencerange-meaning normal}\">Normal Range</span></td></tr></table></div>"
      },
      "status" : "final",
      "category" : [
        {
          "coding" : [
            {
              "system" : "http://terminology.hl7.org/CodeSystem/observation-category",
              "code" : "laboratory",
              "display" : "Laboratory"
            }
          ],
          "text" : "Laboratory"
        }
      ],
      "code" : {
        "coding" : [
          {
            "system" : "http://loinc.org",
            "code" : "17861-6",
            "display" : "Calcium SerPl-mCnc"
          }
        ],
        "text" : "Calcium, Blood"
      },
      "subject" : {
        🔗 "reference" : "Patient/example",
        "display" : "Amy Shaw"
      },
      "effectiveDateTime" : "2005-07-05",
      "performer" : [
        {
          🔗 "reference" : "Practitioner/practitioner-1",
          "display" : "Dr Ronald Bone"
        }
      ],
      "valueQuantity" : {
        "value" : 7.7,
        "unit" : "mg/dL",
        "system" : "http://unitsofmeasure.org"
      },
      "interpretation" : [
        {
          "coding" : [
            {
              "system" : "http://terminology.hl7.org/CodeSystem/v3-ObservationInterpretation",
              "code" : "L",
              "display" : "Low"
            }
          ],
          "text" : "Low"
        }
      ],
      "specimen" : {
        🔗 "reference" : "Specimen/specimen-example-serum",
        "display" : "Serum specimen"
      },
      "referenceRange" : [
        {
          "low" : {
            "value" : 8.5,
            "unit" : "mg/dL",
            "system" : "http://unitsofmeasure.org",
            "code" : "mg/dL"
          },
          "high" : {
            "value" : 10.5,
            "unit" : "mg/dL",
            "system" : "http://unitsofmeasure.org",
            "code" : "mg/dL"
          },
          "type" : {
            "coding" : [
              {
                "system" : "http://terminology.hl7.org/CodeSystem/referencerange-meaning",
                "code" : "normal",
                "display" : "Normal Range"
              }
            ],
            "text" : "Normal Range"
          }
        }
      ]
    }