Evidence Based Medicine on FHIR Implementation Guide, published by HL7 International / Clinical Decision Support. This guide is not an authorized publication; it is the continuous build for version 1.0.0-ballot3 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/HL7/ebm/ and changes regularly. See the Directory of published versions

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: VariableDefinition: Comparator

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<EvidenceVariable xmlns="http://hl7.org/fhir">
  <id value="346296"/>
  <meta>
    <versionId value="6"/>
    <lastUpdated value="2025-03-10T17:32:02.837Z"/>
    <profile
             value="http://hl7.org/fhir/uv/ebm/StructureDefinition/variable-definition"/>
  </meta>
  <language value="en"/>
  <text>
    <status value="empty"/>
    <div xml:lang="en" xmlns="http://www.w3.org/1999/xhtml" lang="en"><p>[No data.]</p></div>
  </text>
  <extension
             url="http://hl7.org/fhir/uv/ebm/StructureDefinition/artifact-publication-status">
    <valueCodeableConcept>
      <coding>
        <system
                value="http://terminology.hl7.org/CodeSystem/cited-artifact-status-type"/>
        <code value="active"/>
        <display value="Active"/>
      </coding>
    </valueCodeableConcept>
  </extension>
  <url value="https://fevir.net/resources/EvidenceVariable/346296"/>
  <identifier>
    <type>
      <coding>
        <system value="http://terminology.hl7.org/CodeSystem/v2-0203"/>
        <code value="ACSN"/>
        <display value="Accession ID"/>
      </coding>
      <text value="FEvIR Object Identifier"/>
    </type>
    <system value="https://fevir.net/FOI"/>
    <value value="346296"/>
    <assigner>
      <display value="Computable Publishing LLC"/>
    </assigner>
  </identifier>
  <name value="Ntprobnp_comparator"/>
  <title value="VariableDefinition: Comparator"/>
  <citeAs
          value="VariableDefinition: Comparator [Database Entry: FHIR EvidenceVariable Resource]. Contributors: Matthias Löbe [Authors/Creators]. In: Fast Evidence Interoperability Resources (FEvIR) Platform, FOI 346296. Revised 2025-03-10. Available at: https://fevir.net/resources/EvidenceVariable/346296. Computable resource at: https://fevir.net/resources/EvidenceVariable/346296#json."/>
  <status value="active"/>
  <author>
    <name value="Matthias Löbe"/>
  </author>
  <publisher value="Computable Publishing LLC"/>
  <contact>
    <telecom>
      <system value="email"/>
      <value value="support@computablepublishing.com"/>
    </telecom>
  </contact>
  <description
               value="Comparator of the NT-proBNP measurement, which qualifies the numerical value."/>
  <useContext>
    <code>
      <system value="https://fevir.net/resources/CodeSystem/179423"/>
      <code value="evidence-communication"/>
      <display value="Evidence Communication"/>
    </code>
    <valueCodeableConcept>
      <coding>
        <system value="https://fevir.net/resources/CodeSystem/179423"/>
        <code value="VariableDefinition"/>
        <display value="VariableDefinition"/>
      </coding>
    </valueCodeableConcept>
  </useContext>
  <copyright value="https://creativecommons.org/licenses/by-nc-sa/4.0/"/>
  <relatesTo>
    <type>
      <coding>
        <system
                value="http://terminology.hl7.org/CodeSystem/artifact-relationship-type"/>
        <code value="part-of"/>
        <display value="Part Of"/>
      </coding>
    </type>
    <targetReference>🔗 
      <reference value="Composition/342828"/>
      <type value="Composition"/>
      <display value="NT-proBNP Study Data Dictionary"/>
    </targetReference>
  </relatesTo>
  <actual value="true"/>
  <definition>
    <concept>
      <text
            value="Comparator of the NT-proBNP measurement, which qualifies the numerical value"/>
    </concept>
  </definition>
  <handling>
    <coding>
      <system value="https://fevir.net/sevco"/>
      <code value="STATO:0000087"/>
      <display value="polychotomous variable"/>
    </coding>
  </handling>
  <dataStorage>
    <datatype>
      <coding>
        <system value="http://hl7.org/fhir/fhir-types"/>
        <code value="string"/>
        <display value="string"/>
      </coding>
    </datatype>
  </dataStorage>
  <constraint>
    <expectedValueSet>🔗 
      <reference value="http://hl7.org/fhir/ValueSet/quantity-comparator"/>
      <display value="Quantity Comparator ValueSet"/>
    </expectedValueSet>
  </constraint>
</EvidenceVariable>