DRAFT Implementation Guide

This is for collaboration and discussion purposes and is subject to change.

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• XML
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: MCV - Mean corpuscular volume - JSON Representation

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{
  "resourceType" : "Observation",
  "id" : "OBX-MCV",
  "text" : {
    "status" : "generated",
    "div" : "<div xmlns=\"http://www.w3.org/1999/xhtml\"><p class=\"res-header-id\"><b>Generated Narrative: Observation OBX-MCV</b></p><a name=\"OBX-MCV\"> </a><a name=\"hcOBX-MCV\"> </a><p><b>identifier</b>: 4326e29b-0875-401c-8ed4-459ce1fa24f0</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://snomed.info/sct 1022491000000106}, {http://snomed.info/sct 1491000237105}, {http://snomed.info/sct 613061010000108}, {http://loinc.org 787-2}\">MCV - Mean corpuscular volume</span></p><p><b>subject</b>: <a href=\"Bundle-FHIRDocumentGeneticReportBundle.html#urn-uuid-d6faafcf-db64-4c11-9da8-25f36774c1bd\">Octavia CHISLETT</a></p><p><b>encounter</b>: <a href=\"Bundle-GenomicsOrderMessageAttachment.html#urn-uuid-984b8a89-4194-4eb4-a7ea-ca8049ebeea3\">Bundle: identifier = https://tools.ietf.org/html/rfc4122#9612365d-52a4-4fab-87e7-8a09d753f095; type = message; timestamp = 2024-10-13 10:33:00+0000</a></p><p><b>effective</b>: 2025-01-29 10:37:26+0000</p><p><b>performer</b>: <a href=\"Bundle-FHIRDocumentGeneticReportBundle.html#urn-uuid-ee9b8fcc-c233-43e1-b7fb-b58ce4cf1db8\">Bundle: identifier = urn:oid:2.16.724.4.8.10.200.10#1d7155e8-b5b8-4406-adda-01a474d5ff6c; type = document; timestamp = 2024-10-13 10:33:00+0000</a></p><p><b>value</b>: 85 fL<span style=\"background: LightGoldenRodYellow\"> (Details: UCUM  codefL = 'fL')</span></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>87.3 fL<span style=\"background: LightGoldenRodYellow\"> (Details: unknown  codefL&quot; = 'fL&quot;')</span></td><td>82.4 fL<span style=\"background: LightGoldenRodYellow\"> (Details: unknown  codefL&quot; = 'fL&quot;')</span></td><td><span title=\"Codes:{http://terminology.hl7.org/CodeSystem/referencerange-meaning normal}\">Normal Range</span></td></tr></table></div>"
  },
  "identifier" : [
    {
      "value" : "4326e29b-0875-401c-8ed4-459ce1fa24f0"
    }
  ],
  "status" : "final",
  "category" : [
    {
      "coding" : [
        {
          "system" : "http://terminology.hl7.org/CodeSystem/observation-category",
          "code" : "laboratory",
          "display" : "Laboratory"
        }
      ]
    }
  ],
  "code" : {
    "coding" : [
      {
        "system" : "http://snomed.info/sct",
        "code" : "1022491000000106",
        "display" : "MCV - Mean corpuscular volume"
      },
      {
        "system" : "http://snomed.info/sct",
        "code" : "1491000237105",
        "display" : "Erythrocytes MCV (mean corpuscular volume) in blood"
      },
      {
        "system" : "http://snomed.info/sct",
        "code" : "613061010000108",
        "display" : "MCV [Entitic mean volume] in Red Blood Cells by Automated count"
      },
      {
        "system" : "http://loinc.org",
        "code" : "787-2",
        "display" : "MCV [Entitic mean volume] in Red Blood Cells by Automated count"
      }
    ]
  },
  "subject" : {
    "reference" : "urn:uuid:d6faafcf-db64-4c11-9da8-25f36774c1bd",
    "identifier" : {
      "system" : "https://fhir.nhs.uk/Id/nhs-number",
      "value" : "9449305552"
    },
    "display" : "Octavia CHISLETT"
  },
  "encounter" : {
    "reference" : "urn:uuid:984b8a89-4194-4eb4-a7ea-ca8049ebeea3"
  },
  "effectiveDateTime" : "2025-01-29T10:37:26+00:00",
  "performer" : [
    {
      "reference" : "urn:uuid:ee9b8fcc-c233-43e1-b7fb-b58ce4cf1db8"
    }
  ],
  "valueQuantity" : {
    "value" : 85,
    "unit" : "fL",
    "system" : "http://unitsofmeasure.org",
    "code" : "fL"
  },
  "referenceRange" : [
    {
      "low" : {
        "value" : 87.3,
        "unit" : "fL",
        "system" : "ucum",
        "code" : "fL\""
      },
      "high" : {
        "value" : 82.4,
        "unit" : "fL",
        "system" : "ucum",
        "code" : "fL\""
      },
      "type" : {
        "coding" : [
          {
            "system" : "http://terminology.hl7.org/CodeSystem/referencerange-meaning",
            "code" : "normal",
            "display" : "Normal Range"
          }
        ]
      }
    }
  ]
}