Healthy Route Implementation Guide, published by Savannah Informatics. This guide is not an authorized publication; it is the continuous build for version 0.1.0 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/savannahghi/healthy-route-ig/ and changes regularly. See the Directory of published versions

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• XML
• JSON
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: eGFR by CKD-EPI 2021 - JSON Representation

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{
  "resourceType" : "Observation",
  "id" : "ExampleEgfr",
  "meta" : {
    "profile" : [
      🔗 "https://fhir.savannahghi.org/ig/healthy-route/StructureDefinition/hr-observation"
    ]
  },
  "text" : {
    "status" : "extensions",
    "div" : "<div xmlns=\"http://www.w3.org/1999/xhtml\"><p class=\"res-header-id\"><b>Generated Narrative: Observation ExampleEgfr</b></p><a name=\"ExampleEgfr\"> </a><a name=\"hcExampleEgfr\"> </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-hr-observation.html\">Healthy Route Measurement</a></p></div><p><b>Tenant</b>: <code>https://example.org/sid/tenant</code>/site-a</p><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 98979-8}\">Glomerular filtration rate [Volume Rate/Area] in Serum, Plasma or Blood by Creatinine-based formula (CKD-EPI 2021)/1.73 sq M</span></p><p><b>subject</b>: <a href=\"Patient-ExampleParticipant.html\">Adhiambo Otieno  Female, DoB: 1971-06-02 ( https://fhir.savannahghi.org/sid/optimalhealth-participant#HR-000123)</a></p><p><b>encounter</b>: <a href=\"Encounter-ExampleScreeningVisit.html\">Encounter: extension = https://example.org/sid/tenant#site-a; status = completed; class = ambulatory; actualPeriod = 2026-04-14 09:05:00+0300 --&gt; 2026-04-14 11:20:00+0300</a></p><p><b>effective</b>: 2026-04-14 10:10:00+0300</p><p><b>performer</b>: <a href=\"Organization-ExampleStudySite.html\">Organization Example Teaching Hospital</a></p><p><b>value</b>: 47 mL/min/1.73m2<span style=\"background: LightGoldenRodYellow\"> (Details: UCUM  codemL/min/{1.73_m2} = 'mL/min/{1.73_m2}')</span></p><p><b>method</b>: <span title=\"Codes:\">CKD-EPI 2021 creatinine equation, without race coefficient</span></p><p><b>derivedFrom</b>: <a href=\"Observation-ExampleCreatinine.html\">Observation Creatinine [Mass/volume] in Serum or Plasma</a></p></div>"
  },
  "extension" : [
    {
      "url" : "https://fhir.savannahghi.org/ig/healthy-route/StructureDefinition/hr-tenant",
      "valueIdentifier" : {
        "system" : "https://example.org/sid/tenant",
        "value" : "site-a"
      }
    }
  ],
  "status" : "final",
  "category" : [
    {
      "coding" : [
        {
          "system" : "http://terminology.hl7.org/CodeSystem/observation-category",
          "code" : "laboratory"
        }
      ]
    }
  ],
  "code" : {
    "coding" : [
      {
        "system" : "http://loinc.org",
        "code" : "98979-8",
        "display" : "Glomerular filtration rate [Volume Rate/Area] in Serum, Plasma or Blood by Creatinine-based formula (CKD-EPI 2021)/1.73 sq M"
      }
    ]
  },
  "subject" : {
    🔗 "reference" : "Patient/ExampleParticipant"
  },
  "encounter" : {
    🔗 "reference" : "Encounter/ExampleScreeningVisit"
  },
  "effectiveDateTime" : "2026-04-14T10:10:00+03:00",
  "performer" : [
    {
      🔗 "reference" : "Organization/ExampleStudySite"
    }
  ],
  "valueQuantity" : {
    "value" : 47,
    "unit" : "mL/min/1.73m2",
    "system" : "http://unitsofmeasure.org",
    "code" : "mL/min/{1.73_m2}"
  },
  "method" : {
    "text" : "CKD-EPI 2021 creatinine equation, without race coefficient"
  },
  "derivedFrom" : [
    {
      🔗 "reference" : "Observation/ExampleCreatinine"
    }
  ]
}