Definition for Code SystemFilterOperator

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

<CodeSystem xmlns="http://hl7.org/fhir">
  <id value="filter-operator"/> 
  <meta> 
    <lastUpdated value="2022-09-07T11:58:29.429+11:00"/> 
    <profile value="http://hl7.org/fhir/StructureDefinition/shareablecodesystem"/> 
  </meta> 
  <text> 
    <status value="extensions"/> 
    <div xmlns="http://www.w3.org/1999/xhtml">
      
      
      <p> This code system http://hl7.org/fhir/filter-operator 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> 
          
          
          <td> 
            
            
            <b> Comments</b> 
          
          
          </td> 
        
        
        </tr> 
        
        
        <tr> 
          
          
          <td style="white-space:nowrap">=
            
            
            <a name="filter-operator-.61"> </a> 
          
          
          </td> 
          
          
          <td> Equals</td> 
          
          
          <td> The specified property of the code equals the provided value.</td> 
          
          
          <td/>  
        
        
        </tr> 
        
        
        <tr> 
          
          
          <td style="white-space:nowrap">is-a
            
            
            <a name="filter-operator-is-a"> </a> 
          
          
          </td> 
          
          
          <td> Is A (by subsumption)</td> 
          
          
          <td> Includes all concept ids that have a transitive is-a relationship with the concept Id
             provided as the value, including the provided concept itself (include descendant codes
             and self).</td> 
          
          
          <td> The definition of is-a is that all the properties of the value are true for the specified
             property of the code, which means that a code has an is-a relationship with itself. To
             exclude the root code, use descendent-of</td> 
        
        
        </tr> 
        
        
        <tr> 
          
          
          <td style="white-space:nowrap">descendent-of
            
            
            <a name="filter-operator-descendent-of"> </a> 
          
          
          </td> 
          
          
          <td> Descendent Of (by subsumption)</td> 
          
          
          <td> Includes all concept ids that have a transitive is-a relationship with the concept Id
             provided as the value, excluding the provided concept itself i.e. include descendant codes
             only).</td> 
          
          
          <td> The definition of is-a is that all the properties of the value are true for the specified
             property of the code. 

Spelling note: &quot;descendant&quot; is a more correct spelling, but the spelling &quot;descendent&
            quot; is maintained in the code for backwards compatibility reasons</td> 
        
        
        </tr> 
        
        
        <tr> 
          
          
          <td style="white-space:nowrap">is-not-a
            
            
            <a name="filter-operator-is-not-a"> </a> 
          
          
          </td> 
          
          
          <td> Not (Is A) (by subsumption)</td> 
          
          
          <td> The specified property of the code does not have an is-a relationship with the provided
             value.</td> 
          
          
          <td/>  
        
        
        </tr> 
        
        
        <tr> 
          
          
          <td style="white-space:nowrap">regex
            
            
            <a name="filter-operator-regex"> </a> 
          
          
          </td> 
          
          
          <td> Regular Expression</td> 
          
          
          <td> The specified property of the code  matches the regex specified in the provided value.</td> 
          
          
          <td/>  
        
        
        </tr> 
        
        
        <tr> 
          
          
          <td style="white-space:nowrap">in
            
            
            <a name="filter-operator-in"> </a> 
          
          
          </td> 
          
          
          <td> In Set</td> 
          
          
          <td> The specified property of the code is in the set of codes or concepts specified in the
             provided value (comma separated list).</td> 
          
          
          <td/>  
        
        
        </tr> 
        
        
        <tr> 
          
          
          <td style="white-space:nowrap">not-in
            
            
            <a name="filter-operator-not-in"> </a> 
          
          
          </td> 
          
          
          <td> Not in Set</td> 
          
          
          <td> The specified property of the code is not in the set of codes or concepts specified in
             the provided value (comma separated list).</td> 
          
          
          <td/>  
        
        
        </tr> 
        
        
        <tr> 
          
          
          <td style="white-space:nowrap">generalizes
            
            
            <a name="filter-operator-generalizes"> </a> 
          
          
          </td> 
          
          
          <td> Generalizes (by Subsumption)</td> 
          
          
          <td> Includes all concept ids that have a transitive is-a relationship from the concept Id
             provided as the value, including the provided concept itself (i.e. include ancestor codes
             and self).</td> 
          
          
          <td> The definition of is-a is that all the properties of the value are true for the specified
             property of the code, which means that a code has an is-a relationship with itself. To
             exclude the root code, add it explicitly to as an exclude</td> 
        
        
        </tr> 
        
        
        <tr> 
          
          
          <td style="white-space:nowrap">exists
            
            
            <a name="filter-operator-exists"> </a> 
          
          
          </td> 
          
          
          <td> Exists</td> 
          
          
          <td> The specified property of the code has at least one value (if the specified value is true;
             if the specified value is false, then matches when the specified property of the code
             has no values).</td> 
          
          
          <td/>  
        
        
        </tr> 
    
    
        <tr> 
          
          
          <td style="white-space:nowrap">child-of
            
            
            <a name="filter-operator-child-of"> </a> 
          
          
          </td> 
          
          
          <td> Child Of</td> 
          
          
          <td> Only concepts with a direct hierarchical relationship to the index code and no other concepts.
             This does not include the index code in the output.</td> 
          
          
          <td/>  
        
        
        </tr> 
    
    
        <tr> 
          
          
          <td style="white-space:nowrap">descendent-leaf
            
            
            <a name="filter-operator-descendent-leaf"> </a> 
          
          
          </td> 
          
          
          <td> Descendent Leaf</td> 
          
          
          <td> Includes concept ids that have a transitive is-a relationship with the concept Id provided
             as the value, but which do not have any concept ids with transitive is-a relationships
             with themselves.</td> 
          
          
          <td/>  
        
        
        </tr> 
      
      
      </table> 
    
    
    </div> 
  </text> 
  <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-wg">
    <valueCode value="vocab"/> 
  </extension> 
  <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status">
    <valueCode value="normative"/> 
  </extension> 
  <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version">
    <valueCode value="4.0.0"/> 
  </extension> 
  <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm">
    <valueInteger value="5"/> 
  </extension> 
  <url value="http://hl7.org/fhir/filter-operator"/> 
  <identifier> 
    <system value="urn:ietf:rfc:3986"/> 
    <value value="urn:oid:2.16.840.1.113883.4.642.4.479"/> 
  </identifier> 
  <version value="5.0.0-ballot"/> 
  <name value="FilterOperator"/> 
  <title value="FilterOperator"/> 
  <status value="active"/> 
  <experimental value="false"/> 
  <date value="2021-01-05T10:01:24+11:00"/> 
  <publisher value="HL7 (FHIR Project)"/> 
  <contact> 
    <telecom> 
      <system value="url"/> 
      <value value="http://hl7.org/fhir"/> 
    </telecom> 
    <telecom> 
      <system value="email"/> 
      <value value="fhir@lists.hl7.org"/> 
    </telecom> 
  </contact> 
  <description value="The kind of operation to perform as a part of a property based filter."/> 
  <caseSensitive value="true"/> 
  <valueSet value="http://hl7.org/fhir/ValueSet/filter-operator"/> 
  <content value="complete"/> 
  <concept> 
    <code value="="/> 
    <display value="Equals"/> 
    <definition value="The specified property of the code equals the provided value."/> 
  </concept> 
  <concept> 
    <extension url="http://hl7.org/fhir/StructureDefinition/codesystem-concept-comments">
      <valueString value="The definition of is-a is that all the properties of the value are true for the specified
       property of the code, which means that a code has an is-a relationship with itself. To
       exclude the root code, use descendent-of"/> 
    </extension> 
    <code value="is-a"/> 
    <display value="Is A (by subsumption)"/> 
    <definition value="Includes all concept ids that have a transitive is-a relationship with the concept Id
     provided as the value, including the provided concept itself (include descendant codes
     and self)."/> 
  </concept> 
  <concept> 
    <extension url="http://hl7.org/fhir/StructureDefinition/codesystem-concept-comments">
      <valueString value="The definition of is-a is that all the properties of the value are true for the specified
       property of the code. 

Spelling note: &quot;descendant&quot; is a more correct spelling, but the spelling &quot;descendent&
      quot; is maintained in the code for backwards compatibility reasons"/> 
    </extension> 
    <code value="descendent-of"/> 
    <display value="Descendent Of (by subsumption)"/> 
    <definition value="Includes all concept ids that have a transitive is-a relationship with the concept Id
     provided as the value, excluding the provided concept itself i.e. include descendant codes
     only)."/> 
  </concept> 
  <concept> 
    <code value="is-not-a"/> 
    <display value="Not (Is A) (by subsumption)"/> 
    <definition value="The specified property of the code does not have an is-a relationship with the provided
     value."/> 
  </concept> 
  <concept> 
    <code value="regex"/> 
    <display value="Regular Expression"/> 
    <definition value="The specified property of the code  matches the regex specified in the provided value."/> 
  </concept> 
  <concept> 
    <code value="in"/> 
    <display value="In Set"/> 
    <definition value="The specified property of the code is in the set of codes or concepts specified in the
     provided value (comma separated list)."/> 
  </concept> 
  <concept> 
    <code value="not-in"/> 
    <display value="Not in Set"/> 
    <definition value="The specified property of the code is not in the set of codes or concepts specified in
     the provided value (comma separated list)."/> 
  </concept> 
  <concept> 
    <extension url="http://hl7.org/fhir/StructureDefinition/codesystem-concept-comments">
      <valueString value="The definition of is-a is that all the properties of the value are true for the specified
       property of the code, which means that a code has an is-a relationship with itself. To
       exclude the root code, add it explicitly to as an exclude"/> 
    </extension> 
    <code value="generalizes"/> 
    <display value="Generalizes (by Subsumption)"/> 
    <definition value="Includes all concept ids that have a transitive is-a relationship from the concept Id
     provided as the value, including the provided concept itself (i.e. include ancestor codes
     and self)."/> 
  </concept> 
  <concept> 
    <code value="child-of"/> 
    <display value="Child Of"/> 
    <definition value="Only concepts with a direct hierarchical relationship to the index code and no other concepts.
     This does not include the index code in the output."/> 
  </concept> 
  <concept> 
    <code value="descendent-leaf"/> 
    <display value="Descendent Leaf"/> 
    <definition value="Includes concept ids that have a transitive is-a relationship with the concept Id provided
     as the value, but which do not have any concept ids with transitive is-a relationships
     with themselves."/> 
  </concept> 
  <concept> 
    <code value="exists"/> 
    <display value="Exists"/> 
    <definition value="The specified property of the code has at least one value (if the specified value is true;
     if the specified value is false, then matches when the specified property of the code
     has no values)."/> 
  </concept> 
</CodeSystem>