HL7 v2.8.1 Vocabulary
0.2.0 - ci-build

HL7 v2.8.1 Vocabulary, published by HL7/FO. This guide is not an authorized publication; it is the continuous build for version 0.2.0 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/frankoemig/hl7.v2.terminology.v281/ and changes regularly. See the Directory of published versions

## : Interpretation Codes (2.8.1 - 2.1.0) - XML Representation

Active as of 2026-03-13

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    <CodeSystem xmlns="http://hl7.org/fhir">
      <id value="observationInterpretation"/>
      <text>
        <status value="generated"/>
        <div xmlns="http://www.w3.org/1999/xhtml"><ul><li>Include all codes defined in <a href="CodeSystem-observationInterpretation.html"><code>http://terminology.hl7.org/v2plusvocab/CodeSystem/observationInterpretation</code></a></li></ul></div>
      </text>
      <extension
                 url="http://terminology.hl7.org/v2plusvocab/StructureDefinition/codesystem-v2versionCreated">
        <valueString value="2.8.1"/>
      </extension>
      <extension
                 url="http://terminology.hl7.org/v2plusvocab/StructureDefinition/codesystem-versionHistory">
        <valueString value="generate correct history somehow"/>
      </extension>
      <extension
                 url="http://terminology.hl7.org/v2plusvocab/StructureDefinition/codesystem-tableNo">
        <valueString value="0078"/>
      </extension>
      <url
           value="http://terminology.hl7.org/v2plusvocab/CodeSystem/observationInterpretation"/>
      <identifier>
        <system value="urn:ietf:rfc:3986"/>
        <value value="urn:oid:2.16.840.1.113883.5.83"/>
      </identifier>
      <identifier>
        <system value="urn:ietf:rfc:3986"/>
        <value value="http://terminology.hl7.org/v2plusvocab/CodeSystem/v2-0078"/>
      </identifier>
      <version value="2.1.0"/>
      <name value="ObservationInterpretation"/>
      <title value="Interpretation Codes (2.8.1 - 2.1.0)"/>
      <status value="active"/>
      <experimental value="true"/>
      <date value="2026-03-13T11:11:38+00:00"/>
      <publisher value="HL7/FO"/>
      <contact>
        <name value="HL7/FO"/>
        <telecom>
          <system value="url"/>
          <value value="http://www.hl7.org"/>
        </telecom>
      </contact>
      <description
                   value="HL7-defined code system of concepts which specify a categorical assessment of an observation value.  Used in HL7 Version 2.x messaging in the OBX segment.
    Notes: This is being communicated in v2.x in OBX-8, in v3 in ObservationInterpretation (CWE) in R1 (Representative Realm) and in FHIR Observation.interpretation."/>
      <copyright value="HL7 Inc., 2026"/>
      <caseSensitive value="true"/>
      <compositional value="false"/>
      <content value="complete"/>
      <property>
        <code value="versionIntroduced"/>
        <uri
             value="http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#versionIntroduced"/>
        <description value="version when was this code introduced"/>
        <type value="string"/>
      </property>
      <property>
        <code value="versionDeprecated"/>
        <uri
             value="http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#versionDeprecated"/>
        <description value="version when was this code deprecated"/>
        <type value="string"/>
      </property>
      <property>
        <code value="status"/>
        <uri value="http://hl7.org/fhir/concept-properties#status"/>
        <description
                     value="A code that indicates the status of the concept. Typical values are active, experimental, deprecated, and retired"/>
        <type value="code"/>
      </property>
      <property>
        <code value="comment"/>
        <uri
             value="http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#comment"/>
        <description
                     value="A string that provides additional detail pertinent to the use or understanding of the concept"/>
        <type value="string"/>
      </property>
      <property>
        <code value="usage"/>
        <uri
             value="http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#usage"/>
        <description value="usage notes for this code"/>
        <type value="string"/>
      </property>
      <property>
        <code value="modified"/>
        <uri
             value="http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#modified"/>
        <description value="date of last modification"/>
        <type value="dateTime"/>
      </property>
      <concept>
        <code value="&lt;"/>
        <display value="Below absolute low-off instrument scale"/>
        <definition value="Below absolute low-off instrument scale"/>
        <designation>
          <language value="de"/>
          <value value="Unter Meßbereich (Extremwertverletzung)"/>
        </designation>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.1"/>
        </property>
      </concept>
      <concept>
        <code value="&gt;"/>
        <display value="Above absolute high-off instrument scale"/>
        <definition value="Above absolute high-off instrument scale"/>
        <designation>
          <language value="de"/>
          <value value="Über Meßbereich (Extremwertverletzung)"/>
        </designation>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.2"/>
        </property>
      </concept>
      <concept>
        <code value="A"/>
        <display value="Abnormal (applies to non-numeric results)"/>
        <definition value="Abnormal (applies to non-numeric results)"/>
        <designation>
          <language value="de"/>
          <value value="anormal (nicht numerisch)"/>
        </designation>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.1"/>
        </property>
      </concept>
      <concept>
        <code value="AA"/>
        <display value="Very abnormal"/>
        <definition
                    value="Very abnormal (applies to non-numeric units, analogous to panic limits for numeric units)"/>
        <designation>
          <language value="de"/>
          <value value="Pathologisch (nicht numerisch)"/>
        </designation>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.1"/>
        </property>
      </concept>
      <concept>
        <code value="AC"/>
        <display value="Anti-complementary substances present"/>
        <definition value="Anti-complementary substances present"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.7"/>
        </property>
      </concept>
      <concept>
        <code value="B"/>
        <display value="Better"/>
        <definition value="Better (use when direction not relevant)"/>
        <designation>
          <language value="de"/>
          <value value="Verbesserung"/>
        </designation>
        <property>
          <code value="modified"/>
          <valueDateTime value="2025-08-02"/>
        </property>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.2"/>
        </property>
      </concept>
      <concept>
        <code value="D"/>
        <display value="Significant change down"/>
        <definition value="Significant change down"/>
        <designation>
          <language value="de"/>
          <value value="Deutlicher Trend nach unten"/>
        </designation>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.1"/>
        </property>
      </concept>
      <concept>
        <code value="DET"/>
        <display value="Detected"/>
        <definition value="Detected"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.7"/>
        </property>
      </concept>
      <concept>
        <code value="H"/>
        <display value="Above high normal"/>
        <definition value="Above high normal"/>
        <designation>
          <language value="de"/>
          <value value="Oberhalb oberer Grenze Referenzbereich"/>
        </designation>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.1"/>
        </property>
      </concept>
      <concept>
        <code value="HH"/>
        <display value="Above upper panic limits"/>
        <definition value="Above upper panic limits"/>
        <designation>
          <language value="de"/>
          <value value="Oberhalb oberer pathologischer Grenze"/>
        </designation>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.1"/>
        </property>
      </concept>
      <concept>
        <code value="HM"/>
        <display value="Hold for Medical Review"/>
        <definition value="Hold for Medical Review"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.8"/>
        </property>
      </concept>
      <concept>
        <code value="I"/>
        <display value="Intermediate"/>
        <definition
                    value="Intermediate. Indicates for microbiology susceptibilities only."/>
        <designation>
          <language value="de"/>
          <value value="Intermediär"/>
        </designation>
        <property>
          <code value="modified"/>
          <valueDateTime value="2025-08-02"/>
        </property>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.1"/>
        </property>
      </concept>
      <concept>
        <code value="IND"/>
        <display value="Indeterminate"/>
        <definition value="Indeterminate"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.7"/>
        </property>
      </concept>
      <concept>
        <code value="L"/>
        <display value="Below low normal"/>
        <definition value="Below low normal"/>
        <designation>
          <language value="de"/>
          <value value="Unterhalb unterer Grenze Referenzbereich"/>
        </designation>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.2"/>
        </property>
      </concept>
      <concept>
        <code value="LL"/>
        <display value="Below lower panic limits"/>
        <definition value="Below lower panic limits"/>
        <designation>
          <language value="de"/>
          <value value="Unterhalb unterer pathologischer Grenze"/>
        </designation>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.1"/>
        </property>
      </concept>
      <concept>
        <code value="MS"/>
        <display value="Moderately susceptible"/>
        <definition
                    value="Moderately susceptible. Indicates for microbiology susceptibilities only."/>
        <designation>
          <language value="de"/>
          <value value="mäßig empfindlich"/>
        </designation>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.1"/>
        </property>
      </concept>
      <concept>
        <code value="N"/>
        <display value="Normal"/>
        <definition value="Normal (applies to non-numeric results)"/>
        <designation>
          <language value="de"/>
          <value value="Normal (nicht numerisch)"/>
        </designation>
        <property>
          <code value="comment"/>
          <valueString value="applies to non-numeric results"/>
        </property>
        <property>
          <code value="modified"/>
          <valueDateTime value="2025-08-02"/>
        </property>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.2"/>
        </property>
      </concept>
      <concept>
        <code value="ND"/>
        <display value="Not Detected"/>
        <definition value="Not Detected"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.7"/>
        </property>
      </concept>
      <concept>
        <code value="NEG"/>
        <display value="Negative"/>
        <definition value="Negative"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.7"/>
        </property>
      </concept>
      <concept>
        <code value="NR"/>
        <display value="Non-reactive"/>
        <definition value="Non-reactive"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.7"/>
        </property>
      </concept>
      <concept>
        <code value="OBX"/>
        <display value="Interpretation qualifiers in separate OBX segments"/>
        <definition value="Interpretation qualifiers in separate OBX segments"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.8"/>
        </property>
      </concept>
      <concept>
        <code value="POS"/>
        <display value="Positive"/>
        <definition value="Positive"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.7"/>
        </property>
      </concept>
      <concept>
        <code value="QCF"/>
        <display value="Quality Control Failure"/>
        <definition value="Quality Control Failure"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.7"/>
        </property>
      </concept>
      <concept>
        <code value="R"/>
        <display value="Resistant"/>
        <definition
                    value="Resistant. Indicates for microbiology susceptibilities only."/>
        <designation>
          <language value="de"/>
          <value value="Resistent"/>
        </designation>
        <property>
          <code value="modified"/>
          <valueDateTime value="2025-08-02"/>
        </property>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.1"/>
        </property>
      </concept>
      <concept>
        <code value="RR"/>
        <display value="Reactive"/>
        <definition value="Reactive"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.7"/>
        </property>
      </concept>
      <concept>
        <code value="S"/>
        <display value="Susceptible"/>
        <definition
                    value="Susceptible. Indicates for microbiology susceptibilities only."/>
        <designation>
          <language value="de"/>
          <value value="Empfindlich"/>
        </designation>
        <property>
          <code value="modified"/>
          <valueDateTime value="2025-08-02"/>
        </property>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.1"/>
        </property>
      </concept>
      <concept>
        <code value="TOX"/>
        <display value="Cytotoxic substance present"/>
        <definition value="Cytotoxic substance present"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.7"/>
        </property>
      </concept>
      <concept>
        <code value="U"/>
        <display value="Significant change up"/>
        <definition value="Significant change up"/>
        <designation>
          <language value="de"/>
          <value value="Deutlicher Trend nach oben"/>
        </designation>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.1"/>
        </property>
      </concept>
      <concept>
        <code value="VS"/>
        <display value="Very susceptible"/>
        <definition
                    value="Very susceptible. Indicates for microbiology susceptibilities only."/>
        <designation>
          <language value="de"/>
          <value value="Sehr empfindlich"/>
        </designation>
        <property>
          <code value="modified"/>
          <valueDateTime value="2025-08-02"/>
        </property>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.1"/>
        </property>
      </concept>
      <concept>
        <code value="W"/>
        <display value="Worse"/>
        <definition value="Worse-use when direction not relevant"/>
        <designation>
          <language value="de"/>
          <value value="Verschlechterung"/>
        </designation>
        <property>
          <code value="modified"/>
          <valueDateTime value="2025-08-02"/>
        </property>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.2"/>
        </property>
      </concept>
      <concept>
        <code value="WR"/>
        <display value="Weakly reactive"/>
        <definition value="Weakly reactive"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.7"/>
        </property>
      </concept>
      <concept>
        <code value="null"/>
        <display value="No range defined, or normal ranges don't apply"/>
        <definition value="No range defined, or normal ranges don't apply"/>
        <designation>
          <language value="de"/>
          <value value="Kein Referenzbereich / Referenzbereich nicht anwendbar"/>
        </designation>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.1"/>
        </property>
      </concept>
    </CodeSystem>