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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<ConceptMap xmlns="http://hl7.org/fhir">
  <id value="v2-0078-to-observation-interpretation"/>
  <language value="en"/>
  <text>
    <status value="generated"/>
    <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>
  </text>
  <url
       value="https://examplesihe.org.uk/ConceptMap/v2-0078-to-observation-interpretation"/>
  <version value="0.1.0"/>
  <name value="V20078ToObservationInterpretation"/>
  <title value="HL7 v2 Abnormal Flags to Observation.interpretation"/>
  <status value="draft"/>
  <experimental value="true"/>
  <date value="2026-11-04"/>
  <publisher value="Kevin Mayfield"/>
  <contact>
    <telecom>
      <system value="url"/>
      <value value="https://github.com/KevinMayfield/PathologyAndLaboratory"/>
    </telecom>
  </contact>
  <description
               value="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 value="urn:iso:std:iso:3166"/>
      <code value="GB"/>
      <display value="United Kingdom of Great Britain and Northern Ireland"/>
    </coding>
  </jurisdiction>
  <sourceUri value="http://terminology.hl7.org/ValueSet/v2-0078"/>
  <targetUri value="http://hl7.org/fhir/ValueSet/observation-interpretation"/>
  <group>
    <source value="http://terminology.hl7.org/CodeSystem/v2-0078"/>
    <target
            value="http://terminology.hl7.org/CodeSystem/v3-ObservationInterpretation"/>
    <element>
      <code value="N"/>
      <target>
        <code value="N"/>
        <equivalence value="equivalent"/>
      </target>
    </element>
    <element>
      <code value="L"/>
      <target>
        <code value="L"/>
        <equivalence value="equivalent"/>
      </target>
    </element>
    <element>
      <code value="H"/>
      <target>
        <code value="H"/>
        <equivalence value="equivalent"/>
      </target>
    </element>
    <element>
      <code value="LL"/>
      <target>
        <code value="LL"/>
        <equivalence value="equivalent"/>
      </target>
    </element>
    <element>
      <code value="HH"/>
      <target>
        <code value="HH"/>
        <equivalence value="equivalent"/>
      </target>
    </element>
    <element>
      <code value="A"/>
      <target>
        <code value="A"/>
        <equivalence value="equivalent"/>
      </target>
    </element>
    <element>
      <code value="AA"/>
      <target>
        <code value="AA"/>
        <equivalence value="equivalent"/>
      </target>
    </element>
    <element>
      <code value="S"/>
      <target>
        <code value="S"/>
        <equivalence value="equivalent"/>
      </target>
    </element>
    <element>
      <code value="R"/>
      <target>
        <code value="R"/>
        <equivalence value="equivalent"/>
      </target>
    </element>
    <element>
      <code value="I"/>
      <target>
        <code value="I"/>
        <equivalence value="equivalent"/>
      </target>
    </element>
    <element>
      <code value="POS"/>
      <target>
        <code value="POS"/>
        <equivalence value="equivalent"/>
      </target>
    </element>
    <element>
      <code value="NEG"/>
      <target>
        <code value="NEG"/>
        <equivalence value="equivalent"/>
      </target>
    </element>
  </group>
</ConceptMap>