This code system http://hl7.org/fhir/research-study-focus-type defines the following codes:

Code Display
medication Medication
device Device
intervention Intervention
factor Factor
<status value="active"/> <experimental value="false"/> <date value="2022-05-15T16:55:11.085+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="Codes for the main intent of the 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/research-study-focus-type"/> <content value="complete"/> <concept> <code value="medication"/> <display value="Medication"/> </concept> <concept> <code value="device"/> <display value="Device"/> </concept> <concept> <code value="intervention"/> <display value="Intervention"/> </concept> <concept> <code value="factor"/> <display value="Factor"/> </concept> </CodeSystem>