HL7 FHIR® Implementation Guide: Ophthalmology Retinal, Release 1, published by HL7 International - Patient Care WG. This is not an authorized publication; it is the continuous build for version 0.1.0). This version is based on the current content of https://github.com/HL7/fhir-eyecare-ig/ and changes regularly. See the Directory of published versions

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: Visual field test parameter observations - JSON Representation

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{
  "resourceType" : "CodeSystem",
  "id" : "visual-field-observations",
  "text" : {
    "status" : "generated",
    "div" : "<div xmlns=\"http://www.w3.org/1999/xhtml\">\n      <h2>Visual field test parameter obsevations</h2>\n    </div>"
  },
  "url" : "http://terminolgy.hl7.org/uv/eyecare/CodeSystem/visual-field-observations",
  "version" : "0.1.0",
  "name" : "OphthalmologyVisualFieldObservations",
  "title" : "Visual field test parameter observations",
  "status" : "draft",
  "date" : "2021-08-07",
  "publisher" : "HL7 International - Patient Care WG",
  "contact" : [
    {
      "name" : "HL7 International - Patient Care",
      "telecom" : [
        {
          "system" : "url",
          "value" : "http://www.hl7.org/Special/committees/patientcare"
        }
      ]
    }
  ],
  "description" : "Visual field observation additional codes",
  "jurisdiction" : [
    {
      "coding" : [
        {
          "system" : "http://unstats.un.org/unsd/methods/m49/m49.htm",
          "code" : "001"
        }
      ]
    }
  ],
  "copyright" : "HL7",
  "caseSensitive" : true,
  "compositional" : false,
  "versionNeeded" : true,
  "content" : "complete",
  "concept" : [
    {
      "code" : "400204",
      "display" : "Fixation loss",
      "definition" : "Fixation loss occurs when the patient reports seeing a stimulus that is presented in the predicted area of the physiologic blind spot"
    },
    {
      "code" : "400202",
      "display" : "False positive percent",
      "definition" : "Percentage of false positive responses"
    },
    {
      "code" : "400203",
      "display" : "False negative percent",
      "definition" : "Percentage of false negative reponses"
    },
    {
      "code" : "400205",
      "display" : "False positive ratio",
      "definition" : "Ratio of false positive responses to total responses"
    },
    {
      "code" : "400206",
      "display" : "False negative ratio",
      "definition" : "Ratio of false negative responses to total responses"
    }
  ]
}