{
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  "meta": {
    "versionId": "1",
    "lastUpdated": "2021-03-12T15:55:53.53+00:00",
    "source": "#hmb2CwhwUe7JwMoC"
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  "status": "final",
  "category": [
    {
      "coding": [
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          "system": "http://terminology.hl7.org/CodeSystem/observation-category",
          "code": "laboratory",
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  "code": {
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        "system": "http://loinc.org",
        "code": "24108-3",
        "display": "Cancer Ag 19-9 [Units/volume] in Serum or Plasma"
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    "text": "Cancer Ag 19-9 [Units/volume] in Serum or Plasma"
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  "subject": {
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  "effectiveDateTime": "2017-11-11T23:29:17+00:00",
  "issued": "2017-11-11T23:29:17.065+00:00",
  "valueQuantity": {
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    "unit": "U/mL",
    "system": "http://unitsofmeasure.org",
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}