England Pathology and Laboratory Medicine (PaLM) Technical Framework
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: HL7 v2 Interpretation Codes (OBX-8) to Observation.interpretation

Draft as of 2026-11-04

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{
  "resourceType" : "ConceptMap",
  "id" : "v2-0078-to-observation-interpretation",
  "language" : "en",
  "text" : {
    "status" : "generated",
    "div" : "<div xmlns=\"http://www.w3.org/1999/xhtml\"><p class=\"res-header-id\"><b>Generated Narrative: ConceptMap v2-0078-to-observation-interpretation</b></p><a name=\"v2-0078-to-observation-interpretation\"> </a><a name=\"hcv2-0078-to-observation-interpretation\"> </a><p>Mapping from <a href=\"http://hl7.org/fhir/R4/v2/0078/index.html\">v2 ABNORMAL FLAGS</a> to <a href=\"http://hl7.org/fhir/R4/valueset-observation-interpretation.html\">Observation Interpretation Codes</a></p><br/><p>Mapping from <a href=\"http://hl7.org/fhir/R4/v2/0078/index.html\">v2 ABNORMAL FLAGS</a> to <a href=\"http://terminology.hl7.org/7.5.0/CodeSystem-v3-ObservationInterpretation.html\">ObservationInterpretation</a></p><table class=\"grid\"><tr><td><b>Source Code</b></td><td><b>Relationship</b></td><td><b>Target Code</b></td></tr><tr><td>N (Normal)</td><td><a href=\"http://hl7.org/fhir/R4/codesystem-concept-map-equivalence.html#concept-map-equivalence-equivalent\" title=\"equivalent\">is equivalent to</a></td><td>N (Normal)</td></tr><tr><td>L (Low)</td><td><a href=\"http://hl7.org/fhir/R4/codesystem-concept-map-equivalence.html#concept-map-equivalence-equivalent\" title=\"equivalent\">is equivalent to</a></td><td>L (Low)</td></tr><tr><td>H (High)</td><td><a href=\"http://hl7.org/fhir/R4/codesystem-concept-map-equivalence.html#concept-map-equivalence-equivalent\" title=\"equivalent\">is equivalent to</a></td><td>H (High)</td></tr><tr><td>LL (Critically low)</td><td><a href=\"http://hl7.org/fhir/R4/codesystem-concept-map-equivalence.html#concept-map-equivalence-equivalent\" title=\"equivalent\">is equivalent to</a></td><td>LL (Critical low)</td></tr><tr><td>HH (Critically high)</td><td><a href=\"http://hl7.org/fhir/R4/codesystem-concept-map-equivalence.html#concept-map-equivalence-equivalent\" title=\"equivalent\">is equivalent to</a></td><td>HH (Critical high)</td></tr><tr><td>A (Abnormal)</td><td><a href=\"http://hl7.org/fhir/R4/codesystem-concept-map-equivalence.html#concept-map-equivalence-equivalent\" title=\"equivalent\">is equivalent to</a></td><td>A (Abnormal)</td></tr><tr><td>AA (Critically abnormal)</td><td><a href=\"http://hl7.org/fhir/R4/codesystem-concept-map-equivalence.html#concept-map-equivalence-equivalent\" title=\"equivalent\">is equivalent to</a></td><td>AA (Critical abnormal)</td></tr><tr><td>S (Susceptible)</td><td><a href=\"http://hl7.org/fhir/R4/codesystem-concept-map-equivalence.html#concept-map-equivalence-equivalent\" title=\"equivalent\">is equivalent to</a></td><td>S (Susceptible)</td></tr><tr><td>R (Resistant)</td><td><a href=\"http://hl7.org/fhir/R4/codesystem-concept-map-equivalence.html#concept-map-equivalence-equivalent\" title=\"equivalent\">is equivalent to</a></td><td>R (Resistant)</td></tr><tr><td>I (Intermediate)</td><td><a href=\"http://hl7.org/fhir/R4/codesystem-concept-map-equivalence.html#concept-map-equivalence-equivalent\" title=\"equivalent\">is equivalent to</a></td><td>I (Intermediate)</td></tr><tr><td>POS (Positive)</td><td><a href=\"http://hl7.org/fhir/R4/codesystem-concept-map-equivalence.html#concept-map-equivalence-equivalent\" title=\"equivalent\">is equivalent to</a></td><td>POS (Positive)</td></tr><tr><td>NEG (Negative)</td><td><a href=\"http://hl7.org/fhir/R4/codesystem-concept-map-equivalence.html#concept-map-equivalence-equivalent\" title=\"equivalent\">is equivalent to</a></td><td>NEG (Negative)</td></tr></table></div>"
  },
  "url" : "https://examplesihe.org.uk/ConceptMap/v2-0078-to-observation-interpretation",
  "version" : "0.1.0",
  "name" : "V20078ToObservationInterpretation",
  "title" : "HL7 v2 Abnormal Flags to Observation.interpretation",
  "status" : "draft",
  "experimental" : true,
  "date" : "2026-11-04",
  "publisher" : "Kevin Mayfield",
  "contact" : [
    {
      "telecom" : [
        {
          "system" : "url",
          "value" : "https://github.com/KevinMayfield/PathologyAndLaboratory"
        }
      ]
    }
  ],
  "description" : "HL7 v2 table 0078 Interpretation Codes (OBX-8 Abnormal Flags) to FHIR `Observation.interpretation` (v3 ObservationInterpretation). The codes are the same in both.",
  "jurisdiction" : [
    {
      "coding" : [
        {
          "system" : "urn:iso:std:iso:3166",
          "code" : "GB",
          "display" : "United Kingdom of Great Britain and Northern Ireland"
        }
      ]
    }
  ],
  "sourceUri" : "http://terminology.hl7.org/ValueSet/v2-0078",
  "targetUri" : "http://hl7.org/fhir/ValueSet/observation-interpretation",
  "group" : [
    {
      "source" : "http://terminology.hl7.org/CodeSystem/v2-0078",
      "target" : "http://terminology.hl7.org/CodeSystem/v3-ObservationInterpretation",
      "element" : [
        {
          "code" : "N",
          "target" : [
            {
              "code" : "N",
              "equivalence" : "equivalent"
            }
          ]
        },
        {
          "code" : "L",
          "target" : [
            {
              "code" : "L",
              "equivalence" : "equivalent"
            }
          ]
        },
        {
          "code" : "H",
          "target" : [
            {
              "code" : "H",
              "equivalence" : "equivalent"
            }
          ]
        },
        {
          "code" : "LL",
          "target" : [
            {
              "code" : "LL",
              "equivalence" : "equivalent"
            }
          ]
        },
        {
          "code" : "HH",
          "target" : [
            {
              "code" : "HH",
              "equivalence" : "equivalent"
            }
          ]
        },
        {
          "code" : "A",
          "target" : [
            {
              "code" : "A",
              "equivalence" : "equivalent"
            }
          ]
        },
        {
          "code" : "AA",
          "target" : [
            {
              "code" : "AA",
              "equivalence" : "equivalent"
            }
          ]
        },
        {
          "code" : "S",
          "target" : [
            {
              "code" : "S",
              "equivalence" : "equivalent"
            }
          ]
        },
        {
          "code" : "R",
          "target" : [
            {
              "code" : "R",
              "equivalence" : "equivalent"
            }
          ]
        },
        {
          "code" : "I",
          "target" : [
            {
              "code" : "I",
              "equivalence" : "equivalent"
            }
          ]
        },
        {
          "code" : "POS",
          "target" : [
            {
              "code" : "POS",
              "equivalence" : "equivalent"
            }
          ]
        },
        {
          "code" : "NEG",
          "target" : [
            {
              "code" : "NEG",
              "equivalence" : "equivalent"
            }
          ]
        }
      ]
    }
  ]
}