<?xml version="1.0" encoding="UTF-8"?><CodeSystem xmlns="http://hl7.org/fhir"><id value="action-cardinality-behavior"/><meta><lastUpdated value="2026-03-18T20:57:50.446+00:00"/></meta><text><status value="generated"/><div xmlns="http://www.w3.org/1999/xhtml"><p class="res-header-id"><b>Generated Narrative: CodeSystem action-cardinality-behavior</b></p><a name="action-cardinality-behavior"> </a><a name="hcaction-cardinality-behavior"> </a><p>This case-sensitive code system <code>http://hl7.org/fhir/action-cardinality-behavior</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">single<a name="action-cardinality-behavior-single"> </a></td><td>Single</td><td>The action may only be selected one time.</td></tr><tr><td style="white-space:nowrap">multiple<a name="action-cardinality-behavior-multiple"> </a></td><td>Multiple</td><td>The action may be selected multiple times.</td></tr></table></div></text><extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-wg"><valueCode value="cds"/></extension><extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status"><valueCode value="normative"/></extension><extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm"><valueInteger value="4"/></extension><url value="http://hl7.org/fhir/action-cardinality-behavior"/><identifier><system value="urn:ietf:rfc:3986"/><value value="urn:oid:2.16.840.1.113883.4.642.4.808"/></identifier><identifier><use value="old"/><system value="urn:ietf:rfc:3986"/><value value="urn:oid:2.16.840.1.113883.4.642.1.791"/></identifier><version value="6.0.0-ballot4"/><name value="ActionCardinalityBehavior"/><title value="Action Cardinality Behavior"/><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="Defines behavior for an action or a group for how many times that item may be repeated."/><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/action-cardinality-behavior"/><content value="complete"/><concept><code value="single"/><display value="Single"/><definition value="The action may only be selected one time."/></concept><concept><code value="multiple"/><display value="Multiple"/><definition value="The action may be selected multiple times."/></concept></CodeSystem>