<status value="active"/> <experimental value="false"/> <date value="2025-10-23T16:55:11+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="Indicates the progression of a study subject through a study."/> <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/example-comparison-group"/> <content value="complete"/> <concept> <code value="placebo"/> <display value="Placebo"/> <definition value="A sham version of the intervention."/> </concept> <concept> <code value="absence-of-exposure"/> <display value="Absence of Exposure"/> <definition value="Not receiving the exposure or intervention."/> </concept> <concept> <code value="usual-care"/> <display value="Usual Care"/> <definition value="The typical care without the intervention under investigation."/> </concept> </CodeSystem>

Generated Narrative: CodeSystem example-comparison-group

Last updated: 2025-10-23T10:01:24.148+11:00

This case-sensitive code system http://hl7.org/fhir/example-comparison-group defines the following codes:

Code	Display	Definition
placebo	Placebo	A sham version of the intervention.
absence-of-exposure	Absence of Exposure	Not receiving the exposure or intervention.
usual-care	Usual Care	The typical care without the intervention under investigation.