<?xml version="1.0" encoding="UTF-8"?><CodeSystem xmlns="http://hl7.org/fhir"><id value="questionnaire-answer-constraint"/><meta><lastUpdated value="2026-04-01T17:59:15.240+00:00"/></meta><text><status value="generated"/><div xmlns="http://www.w3.org/1999/xhtml"><p class="res-header-id"><b>Generated Narrative: CodeSystem questionnaire-answer-constraint</b></p><a name="questionnaire-answer-constraint"> </a><a name="hcquestionnaire-answer-constraint"> </a><p>This case-sensitive code system <code>http://hl7.org/fhir/questionnaire-answer-constraint</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">optionsOnly<a name="questionnaire-answer-constraint-optionsOnly"> </a></td><td>Options only</td><td>Only values listed as answerOption or in the expansion of the answerValueSet are permitted</td></tr><tr><td style="white-space:nowrap">optionsOrType<a name="questionnaire-answer-constraint-optionsOrType"> </a></td><td>Options or 'type'</td><td>In addition to the values listed as answerOption or in the expansion of the answerValueSet, any other values that correspond to the specified item.type are permitted</td></tr><tr><td style="white-space:nowrap">optionsOrString<a name="questionnaire-answer-constraint-optionsOrString"> </a></td><td>Options or string</td><td>In addition to the values listed as answerOption or in the expansion of the answerValueSet, free-text strings are permitted.  Answers will have a type of 'string'.</td></tr></table></div></text><extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-wg"><valueCode value="fhir"/></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="5"/></extension><url value="http://hl7.org/fhir/questionnaire-answer-constraint"/><identifier><system value="urn:ietf:rfc:3986"/><value value="urn:oid:2.16.840.1.113883.4.642.4.2019"/></identifier><version value="6.0.0-ballot4"/><name value="QuestionnaireAnswerConstraint"/><title value="Questionnaire answer constraint codes"/><status value="active"/><experimental value="false"/><publisher value="HL7 International"/><description value="Codes that describe the types of constraints possible on a question item that has a list of permitted answers"/><jurisdiction><coding><system value="http://unstats.un.org/unsd/methods/m49/m49.htm"/><code value="001"/><display value="World"/></coding></jurisdiction><caseSensitive value="true"/><content value="complete"/><concept><code value="optionsOnly"/><display value="Options only"/><definition value="Only values listed as answerOption or in the expansion of the answerValueSet are permitted"/></concept><concept><code value="optionsOrType"/><display value="Options or 'type'"/><definition value="In addition to the values listed as answerOption or in the expansion of the answerValueSet, any other values that correspond to the specified item.type are permitted"/></concept><concept><code value="optionsOrString"/><display value="Options or string"/><definition value="In addition to the values listed as answerOption or in the expansion of the answerValueSet, free-text strings are permitted.  Answers will have a type of 'string'."/></concept></CodeSystem>