<?xml version="1.0" encoding="UTF-8"?>
<CodeSystem xmlns="http://hl7.org/fhir">
<id value="filter-operator"/>
<meta>
<lastUpdated value="2023-03-26T15:21:02.749+11:00"/>
<profile value="http://hl7.org/fhir/StructureDefinition/shareablecodesystem"/>
</meta>
<text>
<status value="extensions"/>
<div value="<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>
<identifier>
<use value="old"/>
<system value="urn:ietf:rfc:3986"/>
<value value="urn:oid:2.16.840.1.113883.4.642.1.472"/>
</identifier>
<identifier>
<use value="old"/>
<system value="urn:ietf:rfc:3986"/>
<value value="urn:oid:2.16.840.1.113883.4.642.2.280"/>
</identifier>
<version value="5.0.0"/>
<name value="FilterOperator"/>
<title value="Filter Operator"/>
<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."/>
<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/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: "descendant" is a more correct spelling, but the spelling "descendent" 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>
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TX: CodeSystem filter-operator