HL7 v2.9.1 Vocabulary
0.2.0 - ci-build

HL7 v2.9.1 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.v291/ and changes regularly. See the Directory of published versions

## : Observation Sub-Type (2.9.1 - 1.1.0) - XML Representation

Active as of 2026-03-13

Raw xml | Download

    <CodeSystem xmlns="http://hl7.org/fhir">
      <id value="observationSubtype"/>
      <text>
        <status value="generated"/>
        <div xmlns="http://www.w3.org/1999/xhtml"><ul><li>Include all codes defined in <a href="CodeSystem-observationSubtype.html"><code>http://terminology.hl7.org/v2plusvocab/CodeSystem/observationSubtype</code></a></li></ul></div>
      </text>
      <extension
                 url="http://terminology.hl7.org/v2plusvocab/StructureDefinition/codesystem-v2versionCreated">
        <valueString value="2.9.1"/>
      </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="0937"/>
      </extension>
      <url
           value="http://terminology.hl7.org/v2plusvocab/CodeSystem/observationSubtype"/>
      <identifier>
        <system value="urn:ietf:rfc:3986"/>
        <value value="urn:oid:2.16.840.1.113883.18.440"/>
      </identifier>
      <identifier>
        <system value="urn:ietf:rfc:3986"/>
        <value value="http://terminology.hl7.org/v2plusvocab/CodeSystem/v2-0937"/>
      </identifier>
      <version value="1.1.0"/>
      <name value="ObservationSubtype"/>
      <title value="Observation Sub-Type (2.9.1 - 1.1.0)"/>
      <status value="active"/>
      <experimental value="true"/>
      <date value="2026-03-13T11:04:57+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 specifying the observation sub-type.  Used in HL7 Version 2.x messaging in the OBX segment."/>
      <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 id="6708">
        <code value="AOE"/>
        <display value="Ask at Order Entry"/>
        <definition value="Ask at Order Entry"/>
        <property>
          <code value="comment"/>
          <valueString
                       value="Sub-type of QST (Question) - OBX-5 value is answer to an Ask at Order Entry question"/>
        </property>
        <property>
          <code value="modified"/>
          <valueDateTime value="2015-07-13"/>
        </property>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.8.2"/>
        </property>
      </concept>
      <concept id="6709">
        <code value="ASC"/>
        <display value="Ask at Specimen Collection"/>
        <definition value="Ask at Specimen Collection"/>
        <property>
          <code value="comment"/>
          <valueString
                       value="Sub-type of QST (Question)  - OBX-5 value is answer to an Ask at Specimen Collection question"/>
        </property>
        <property>
          <code value="modified"/>
          <valueDateTime value="2015-07-13"/>
        </property>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.8.2"/>
        </property>
      </concept>
      <concept id="6710">
        <code value="MCS"/>
        <display value="Micro Culture Status"/>
        <definition
                    value="Sub-type of RSLT (Result) This term identifies observations that give overall culture outcome, when no specific organism is being named."/>
        <property>
          <code value="comment"/>
          <valueString value="Examples are: no growth, normal flora"/>
        </property>
        <property>
          <code value="modified"/>
          <valueDateTime value="2022-08-25"/>
        </property>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.9"/>
        </property>
      </concept>
      <concept id="6711">
        <code value="MID"/>
        <display value="Micro Isolate Descriptor"/>
        <definition
                    value="Sub-type of RSLT (Result) This term identifies any other observations about the isolate."/>
        <property>
          <code value="comment"/>
          <valueString value="Examples: catalase positive, hemolytic, etc."/>
        </property>
        <property>
          <code value="modified"/>
          <valueDateTime value="2022-08-25"/>
        </property>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.9"/>
        </property>
      </concept>
      <concept id="6712">
        <code value="MIG"/>
        <display value="Micro Isolate Growth Quantity"/>
        <definition
                    value="Sub-type of RSLT (Result) This term identifies growth levels of an isolate – can be numeric or categorical."/>
        <property>
          <code value="comment"/>
          <valueString
                       value="Examples: &lt;10,000 CFU, &gt;100,00 CFU, Few, Moderate, Many, etc."/>
        </property>
        <property>
          <code value="modified"/>
          <valueDateTime value="2022-08-25"/>
        </property>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.9"/>
        </property>
      </concept>
      <concept id="6713">
        <code value="MIN"/>
        <display value="Micro Isolate Name"/>
        <definition
                    value="Sub-type of RSLT (Result) This term identifies observations that name a specific organism either at the species or the genus level."/>
        <property>
          <code value="comment"/>
          <valueString
                       value="Examples are: Genus Serratia, Neisseria meningitidis, Escherichia coli O157:H7, but also identification on a culture plate like presumptive Proteus species."/>
        </property>
        <property>
          <code value="modified"/>
          <valueDateTime value="2022-08-25"/>
        </property>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.9"/>
        </property>
      </concept>
      <concept id="6714">
        <code value="MIR"/>
        <display value="Micro Isolate Related"/>
        <definition value="Micro Isolate Related"/>
        <property>
          <code value="comment"/>
          <valueString
                       value="Sub-type of RSLT (Result) - qualifies the result as an isolate."/>
        </property>
        <property>
          <code value="status"/>
          <valueCode value="inactive"/>
        </property>
        <property>
          <code value="modified"/>
          <valueDateTime value="2017-12-05"/>
        </property>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.8.2"/>
        </property>
      </concept>
      <concept id="6715">
        <code value="MIRM"/>
        <display value="Micro Isolate Related Modifier"/>
        <definition value="Micro Isolate Related Modifier"/>
        <property>
          <code value="comment"/>
          <valueString
                       value="Sub-type of RSLT (Result) - result is a modifier of the isolate (e.g., Few, Some, etc.)"/>
        </property>
        <property>
          <code value="status"/>
          <valueCode value="inactive"/>
        </property>
        <property>
          <code value="modified"/>
          <valueDateTime value="2017-12-05"/>
        </property>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.8.2"/>
        </property>
      </concept>
      <concept id="6716">
        <code value="MNIR"/>
        <display value="Micro Non-Isolate Related"/>
        <definition value="Micro Non-Isolate Related"/>
        <property>
          <code value="comment"/>
          <valueString
                       value="Sub-type of RSLT (Result) - qualifies result as microbiology not related to any isolate (e.g., gram stain observations)"/>
        </property>
        <property>
          <code value="status"/>
          <valueCode value="inactive"/>
        </property>
        <property>
          <code value="modified"/>
          <valueDateTime value="2017-12-05"/>
        </property>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.8.2"/>
        </property>
      </concept>
      <concept id="6717">
        <code value="MOD"/>
        <display value="Micro Other Descriptor"/>
        <definition
                    value="Sub-type of RSLT (Result) This term identifies observations that do not fit the culture status, but is not at the isolate level."/>
        <property>
          <code value="modified"/>
          <valueDateTime value="2022-08-25"/>
        </property>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.9"/>
        </property>
      </concept>
      <concept id="6718">
        <code value="MSS"/>
        <display value="Micro Sample Stain"/>
        <definition
                    value="Sub-type of RSLT (Result) This term identifies observations on gram stains (and other stains or smears) on the clinical sample."/>
        <property>
          <code value="comment"/>
          <valueString
                       value="Examples are: many gram positive rods, acid fast bacteria seen, etc."/>
        </property>
        <property>
          <code value="modified"/>
          <valueDateTime value="2017-12-05"/>
        </property>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.9"/>
        </property>
      </concept>
      <concept id="6719">
        <code value="SUP"/>
        <display value="Supplemental Result"/>
        <definition value="Supplemental Result"/>
        <property>
          <code value="comment"/>
          <valueString
                       value="Sub-type of RSLT (Result) - result coming over is additional material, for example points on a graph, an image, raw instrument data, links to related observations, etc."/>
        </property>
        <property>
          <code value="modified"/>
          <valueDateTime value="2015-07-13"/>
        </property>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.8.2"/>
        </property>
      </concept>
      <concept id="6720">
        <code value="SUR"/>
        <display value="Susceptibility Related"/>
        <definition value="Susceptibility Related"/>
        <property>
          <code value="comment"/>
          <valueString
                       value="Sub-type of RSLT (Result) - result value is for micro susceptibility/sensitivity"/>
        </property>
        <property>
          <code value="modified"/>
          <valueDateTime value="2015-07-13"/>
        </property>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.8.2"/>
        </property>
      </concept>
      <concept id="6721">
        <code value="UNSP"/>
        <display value="Unspecified"/>
        <definition value="Unspecified"/>
        <property>
          <code value="comment"/>
          <valueString
                       value="Sub-type of RSLT (Result) - result falls outside of the other sub-types."/>
        </property>
        <property>
          <code value="modified"/>
          <valueDateTime value="2015-07-13"/>
        </property>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.8.2"/>
        </property>
      </concept>
    </CodeSystem>