HL7 v2.5.1 Vocabulary
0.1.0 - ci-build

HL7 v2.5.1 Vocabulary, published by HL7/FO. This guide is not an authorized publication; it is the continuous build for version 0.1.0 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.v251/ and changes regularly. See the Directory of published versions

## : Time Delay Post Challenge (2.5.1 - 1.0.0) - XML Representation

Active as of 2026-01-27

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    <CodeSystem xmlns="http://hl7.org/fhir">
      <id value="timeDelayPostChallenge"/>
      <text>
        <status value="generated"/>
        <div xmlns="http://www.w3.org/1999/xhtml"><ul><li>Include all codes defined in <a href="CodeSystem-timeDelayPostChallenge.html"><code>http://terminology.hl7.org/v2plusvocab/CodeSystem/timeDelayPostChallenge</code></a></li></ul></div>
      </text>
      <extension
                 url="http://terminology.hl7.org/v2plusvocab/StructureDefinition/codesystem-v2versionCreated">
        <valueString value="2.5.1"/>
      </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="0256"/>
      </extension>
      <url
           value="http://terminology.hl7.org/v2plusvocab/CodeSystem/timeDelayPostChallenge"/>
      <identifier>
        <system value="urn:ietf:rfc:3986"/>
        <value value="urn:oid:2.16.840.1.113883.18.151"/>
      </identifier>
      <version value="1.0.0"/>
      <name value="TimeDelayPostChallenge"/>
      <title value="Time Delay Post Challenge (2.5.1 - 1.0.0)"/>
      <status value="active"/>
      <experimental value="true"/>
      <date value="2026-01-27T19:29:18+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 used to classify an observation definition as being a component of a challenge test.  Used in HL7 Version 2.x messaging in the OM1 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>
        <code value="10D"/>
        <display value="10 days"/>
        <definition value="10 days"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3"/>
        </property>
      </concept>
      <concept>
        <code value="10M"/>
        <display value="10 minutes post challenge"/>
        <definition value="10 minutes post challenge"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3"/>
        </property>
      </concept>
      <concept>
        <code value="12H"/>
        <display value="12 hours post challenge"/>
        <definition value="12 hours post challenge"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3"/>
        </property>
      </concept>
      <concept>
        <code value="15M"/>
        <display value="15 minutes post challenge"/>
        <definition value="15 minutes post challenge"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3"/>
        </property>
      </concept>
      <concept>
        <code value="1H"/>
        <display value="1 hour post challenge"/>
        <definition value="1 hour post challenge"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3"/>
        </property>
      </concept>
      <concept>
        <code value="1L"/>
        <display value="1 month (30 days) post challenge"/>
        <definition value="1 month (30 days) post challenge"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3"/>
        </property>
      </concept>
      <concept>
        <code value="1M"/>
        <display value="1 minute post challenge"/>
        <definition value="1 minute post challenge"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3"/>
        </property>
      </concept>
      <concept>
        <code value="1W"/>
        <display value="1 week"/>
        <definition value="1 week"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3"/>
        </property>
      </concept>
      <concept>
        <code value="2.5H"/>
        <display value="2 1/2 hours post challenge"/>
        <definition value="2 1/2 hours post challenge"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3"/>
        </property>
      </concept>
      <concept>
        <code value="20M"/>
        <display value="20 minutes post challenge"/>
        <definition value="20 minutes post challenge"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3"/>
        </property>
      </concept>
      <concept>
        <code value="24H"/>
        <display value="24 hours post challenge"/>
        <definition value="24 hours post challenge"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3"/>
        </property>
      </concept>
      <concept>
        <code value="25M"/>
        <display value="25 minutes post challenge"/>
        <definition value="25 minutes post challenge"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3"/>
        </property>
      </concept>
      <concept>
        <code value="2D"/>
        <display value="2 days"/>
        <definition value="2 days"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3"/>
        </property>
      </concept>
      <concept>
        <code value="2H"/>
        <display value="2 hours post challenge"/>
        <definition value="2 hours post challenge"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3"/>
        </property>
      </concept>
      <concept>
        <code value="2L"/>
        <display value="2 months (60 days) post challenge"/>
        <definition value="2 months (60 days) post challenge"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3"/>
        </property>
      </concept>
      <concept>
        <code value="2M"/>
        <display value="2 minutes post challenge"/>
        <definition value="2 minutes post challenge"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3"/>
        </property>
      </concept>
      <concept>
        <code value="2W"/>
        <display value="2 weeks"/>
        <definition value="2 weeks"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3"/>
        </property>
      </concept>
      <concept>
        <code value="30M"/>
        <display value="30 minutes post challenge"/>
        <definition value="30 minutes post challenge"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3"/>
        </property>
      </concept>
      <concept>
        <code value="3D"/>
        <display value="3 days"/>
        <definition value="3 days"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3"/>
        </property>
      </concept>
      <concept>
        <code value="3H"/>
        <display value="3 hours post challenge"/>
        <definition value="3 hours post challenge"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3"/>
        </property>
      </concept>
      <concept>
        <code value="3L"/>
        <display value="3 months (90 days) post challenge"/>
        <definition value="3 months (90 days) post challenge"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3"/>
        </property>
      </concept>
      <concept>
        <code value="3M"/>
        <display value="3 minutes post challenge"/>
        <definition value="3 minutes post challenge"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3"/>
        </property>
      </concept>
      <concept>
        <code value="3W"/>
        <display value="3 weeks"/>
        <definition value="3 weeks"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3"/>
        </property>
      </concept>
      <concept>
        <code value="4D"/>
        <display value="4 days"/>
        <definition value="4 days"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3"/>
        </property>
      </concept>
      <concept>
        <code value="4H"/>
        <display value="4 hours post challenge"/>
        <definition value="4 hours post challenge"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3"/>
        </property>
      </concept>
      <concept>
        <code value="4M"/>
        <display value="4 minutes post challenge"/>
        <definition value="4 minutes post challenge"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3"/>
        </property>
      </concept>
      <concept>
        <code value="4W"/>
        <display value="4 weeks"/>
        <definition value="4 weeks"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3"/>
        </property>
      </concept>
      <concept>
        <code value="5D"/>
        <display value="5 days"/>
        <definition value="5 days"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3"/>
        </property>
      </concept>
      <concept>
        <code value="5H"/>
        <display value="5 hours post challenge"/>
        <definition value="5  hours post challenge"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3"/>
        </property>
      </concept>
      <concept>
        <code value="5M"/>
        <display value="5 minutes post challenge"/>
        <definition value="5 minutes post challenge"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3"/>
        </property>
      </concept>
      <concept>
        <code value="6D"/>
        <display value="6 days"/>
        <definition value="6 days"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3"/>
        </property>
      </concept>
      <concept>
        <code value="6H"/>
        <display value="6 hours post challenge"/>
        <definition value="6 hours post challenge"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3"/>
        </property>
      </concept>
      <concept>
        <code value="6M"/>
        <display value="6 minutes post challenge"/>
        <definition value="6 minutes post challenge"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3"/>
        </property>
      </concept>
      <concept>
        <code value="7D"/>
        <display value="7 days"/>
        <definition value="7 days"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3"/>
        </property>
      </concept>
      <concept>
        <code value="7H"/>
        <display value="7 hours post challenge"/>
        <definition value="7 hours post challenge"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3"/>
        </property>
      </concept>
      <concept>
        <code value="7M"/>
        <display value="7 minutes post challenge"/>
        <definition value="7 minutes post challenge"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3"/>
        </property>
      </concept>
      <concept>
        <code value="8H"/>
        <display value="8 hours post challenge"/>
        <definition value="8 hours post challenge"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3"/>
        </property>
      </concept>
      <concept>
        <code value="8H SHIFT"/>
        <display value="8 hours aligned on nursing shifts"/>
        <definition value="8 hours aligned on nursing shifts"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3"/>
        </property>
      </concept>
      <concept>
        <code value="8M"/>
        <display value="8 minutes post challenge"/>
        <definition value="8 minutes post challenge"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3"/>
        </property>
      </concept>
      <concept>
        <code value="9M"/>
        <display value="9 minutes post challenge"/>
        <definition value="9 minutes post challenge"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3"/>
        </property>
      </concept>
      <concept>
        <code value="BS"/>
        <display value="Baseline (time just before the challenge)"/>
        <definition value="Baseline (time just before the challenge)"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3"/>
        </property>
      </concept>
      <concept>
        <code value="PEAK"/>
        <display
                 value="The time post drug dose at which the highest drug level is reached (differs by drug)"/>
        <definition
                    value="The time post drug dose at which the highest drug level is reached (differs by drug)"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3"/>
        </property>
      </concept>
      <concept>
        <code value="RANDOM"/>
        <display
                 value="Time from the challenge, or dose not specified. (random)"/>
        <definition
                    value="Time from the challenge, or dose not specified. (random)"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3"/>
        </property>
      </concept>
      <concept>
        <code value="TROUGH"/>
        <display
                 value="The time post drug dose at which the lowest drug level is reached (varies with drug)"/>
        <definition
                    value="The time post drug dose at which the lowest drug level is reached (varies with drug)"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3"/>
        </property>
      </concept>
    </CodeSystem>