HL7 Terminology (THO)
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This page is part of the HL7 Terminology (v7.2.0: Release) based on FHIR (HL7® FHIR® Standard) v5.0.0. This is the current published version. For a full list of available versions, see the Directory of published versions

: ObservationreferenceRangeNormalValue

Active as of 2026-06-01 Maturity Level: 5

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<CodeSystem xmlns="http://hl7.org/fhir">
  <id value="observation-referencerange-normalvalue"/>
  <meta>
    <lastUpdated value="2023-03-26T15:21:02.749+11:00"/>
    <profile
             value="http://hl7.org/fhir/StructureDefinition/shareablecodesystem"/>
  </meta>
  <language value="en"/>
  <text>
    <status value="generated"/>
    <div xmlns="http://www.w3.org/1999/xhtml"><p class="res-header-id"><b>Generated Narrative: CodeSystem observation-referencerange-normalvalue</b></p><a name="observation-referencerange-normalvalue"> </a><a name="hcobservation-referencerange-normalvalue"> </a><div style="display: inline-block; background-color: #d9e0e7; padding: 6px; margin: 4px; border: 1px solid #8da1b4; border-radius: 5px; line-height: 60%"><p style="margin-bottom: 0px">Last updated: 2023-03-26 15:21:02+1100</p><p style="margin-bottom: 0px">Profile: <a href="http://hl7.org/fhir/R5/shareablecodesystem.html">Shareable CodeSystem</a></p></div><p>This case-sensitive code system <code>http://terminology.hl7.org/CodeSystem/observation-referencerange-normalvalue</code> defines the following codes in a Is-A hierarchy:</p><table class="codes"><tr><td style="white-space:nowrap"><b>Code</b></td><td><b>Display</b></td><td><b>Definition</b></td></tr><tr><td style="white-space:nowrap">negative<a name="observation-referencerange-normalvalue-negative"> </a></td><td>Negative</td><td>The expected normal value for the observation is negative.</td></tr><tr><td style="white-space:nowrap">absent<a name="observation-referencerange-normalvalue-absent"> </a></td><td>Absent</td><td>The expected normal value for the observation is absent.</td></tr></table></div>
  </text>
  <extension
             url="http://hl7.org/fhir/StructureDefinition/structuredefinition-wg">
    <valueCode value="oo"/>
  </extension>
  <extension
             url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm">
    <valueInteger value="5"/>
  </extension>
  <extension
             url="http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version">
    <valueCode value="4.0.0"/>
  </extension>
  <url
       value="http://terminology.hl7.org/CodeSystem/observation-referencerange-normalvalue"/>
  <identifier>
    <system value="urn:ietf:rfc:3986"/>
    <value value="urn:oid:2.16.840.1.113883.4.642.4.2099"/>
  </identifier>
  <version value="1.0.0"/>
  <name value="ObservationReferenceRangeNormalValue"/>
  <title value="ObservationreferenceRangeNormalValue"/>
  <status value="active"/>
  <experimental value="false"/>
  <date value="2026-06-01"/>
  <publisher value="Health Level Seven International"/>
  <contact>
    <telecom>
      <system value="url"/>
      <value value="http://hl7.org"/>
    </telecom>
    <telecom>
      <system value="email"/>
      <value value="hq@HL7.org"/>
    </telecom>
  </contact>
  <description
               value="Codes that describe the normal value in the reference range."/>
  <jurisdiction>
    <coding>
      <system value="http://unstats.un.org/unsd/methods/m49/m49.htm"/>
      <code value="001"/>
      <display value="World"/>
    </coding>
  </jurisdiction>
  <copyright
             value="This material derives from the HL7 Terminology (THO). THO is copyright ©1989+ Health Level Seven International and is made available under the CC0 designation. For more licensing information see: https://terminology.hl7.org/license"/>
  <caseSensitive value="true"/>
  <valueSet
            value="http://terminology.hl7.org/ValueSet/observation-referencerange-normalvalue"/>
  <hierarchyMeaning value="is-a"/>
  <content value="complete"/>
  <concept>
    <code value="negative"/>
    <display value="Negative"/>
    <definition
                value="The expected normal value for the observation is negative."/>
  </concept>
  <concept>
    <code value="absent"/>
    <display value="Absent"/>
    <definition
                value="The expected normal value for the observation is absent."/>
  </concept>
</CodeSystem>