<?xml version="1.0" encoding="UTF-8"?>

<CodeSystem xmlns="http://hl7.org/fhir">
  <id value="selectivity-form"/>
  <meta>
    <profile value="http://hl7.org/fhir/StructureDefinition/shareablecodesystem"/>
  </meta>
  <text>
    <status value="generated"/><div xmlns="http://www.w3.org/1999/xhtml"><p class="res-header-id"><b>Generated Narrative: CodeSystem selectivity-form</b></p><a name="selectivity-form"> </a><a name="hcselectivity-form"> </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"/><p style="margin-bottom: 0px">Profile: <a href="http://hl7.org/fhir/R4/shareablecodesystem.html">Shareable CodeSystem</a></p></div><p>This case-sensitive code system <code>http://hl7.org/fhir/uv/cql/CodeSystem/selectivity-form</code> defines the following codes:</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">total<a name="selectivity-form-total"> </a></td><td>Total</td><td>Indicates the query selectivity completely covers the criteria in the query (i.e. the query is in CNF/DNF, and all terms are sargeable).</td></tr><tr><td style="white-space:nowrap">conjunctive<a name="selectivity-form-conjunctive"> </a></td><td>Conjunctive</td><td>Indicates the query selectivity represents criteria in Conjunctive Normal Form (CNF) (i.e. a conjunction of disjunctions).</td></tr><tr><td style="white-space:nowrap">disjunctive<a name="selectivity-form-disjunctive"> </a></td><td>Disjunctive</td><td>Indicates the query selectivity represents criteria in Disjunctive Normal Form (DNF) (i.e. a disjunction of conjunctions).</td></tr></table></div>
  </text>
  <extension url="http://hl7.org/fhir/StructureDefinition/cqf-knowledgeCapability">
    <valueCode value="shareable"/>
  </extension>
  <extension url="http://hl7.org/fhir/StructureDefinition/cqf-knowledgeCapability">
    <valueCode value="computable"/>
  </extension>
  <extension url="http://hl7.org/fhir/StructureDefinition/cqf-knowledgeCapability">
    <valueCode value="publishable"/>
  </extension>
  <extension url="http://hl7.org/fhir/StructureDefinition/cqf-knowledgeRepresentationLevel">
    <valueCode value="structured"/>
  </extension>
  <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status">
    <valueCode value="trial-use"/>
  </extension>
  <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm">
    <valueInteger value="1"/>
  </extension>
  <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-wg">
    <valueCode value="cds"/>
  </extension>
  <url value="http://hl7.org/fhir/uv/cql/CodeSystem/selectivity-form"/>
  <identifier>
    <system value="urn:ietf:rfc:3986"/>
    <value value="urn:oid:2.16.840.1.113883.4.642.40.37.16.5"/>
  </identifier>
  <version value="3.0.0-ballot"/>
  <name value="SelectivityForm"/>
  <title value="Selectivity Form Code System"/>
  <status value="active"/>
  <experimental value="false"/>
  <date value="2026-04-24"/>
  <publisher value="HL7 International / Clinical Decision Support"/>
  <contact>
    <telecom>
      <system value="url"/>
      <value value="http://www.hl7.org/Special/committees/dss"/>
    </telecom>
  </contact>
  <description value="Codes representing the form of the description of the selectivity of an expression, either conjunctive or disjunctive."/>
  <jurisdiction>
    <coding>
      <system value="http://unstats.un.org/unsd/methods/m49/m49.htm"/>
      <code value="001"/>
      <display value="World"/>
    </coding>
  </jurisdiction>
  <caseSensitive value="true"/>
  <valueSet value="http://hl7.org/fhir/uv/cql/ValueSet/selectivity-form"/>
  <content value="complete"/>
  <concept>
    <code value="total"/>
    <display value="Total"/>
    <definition value="Indicates the query selectivity completely covers the criteria in the query (i.e. the query is in CNF/DNF, and all terms are sargeable)."/>
  </concept>
  <concept>
    <code value="conjunctive"/>
    <display value="Conjunctive"/>
    <definition value="Indicates the query selectivity represents criteria in Conjunctive Normal Form (CNF) (i.e. a conjunction of disjunctions)."/>
  </concept>
  <concept>
    <code value="disjunctive"/>
    <display value="Disjunctive"/>
    <definition value="Indicates the query selectivity represents criteria in Disjunctive Normal Form (DNF) (i.e. a disjunction of conjunctions)."/>
  </concept>
</CodeSystem>