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

Code Display Definition
sponsor sponsor sponsor
lead-sponsor lead-sponsor lead-sponsor
sponsor-investigator sponsor-investigator sponsor-investigator
primary-investigator primary-investigator primary-investigator
collaborator collaborator collaborator
funding-source funding-source funding-source
general-contact general-contact general-contact
recruitment-contact recruitment-contact recruitment-contact
sub-investigator sub-investigator sub-investigator
study-director study-director study-director
study-chair study-chair study-chair
irb Institutional Review Board
<status value="active"/> <experimental value="false"/> <date value="2022-05-12T12:40:00+00:00"/> <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="This is a ResearchStudy's party role."/> <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-party-role"/> <content value="complete"/> <concept> <code value="sponsor"/> <display value="sponsor"/> <definition value="sponsor"/> </concept> <concept> <code value="lead-sponsor"/> <display value="lead-sponsor"/> <definition value="lead-sponsor"/> </concept> <concept> <code value="sponsor-investigator"/> <display value="sponsor-investigator"/> <definition value="sponsor-investigator"/> </concept> <concept> <code value="primary-investigator"/> <display value="primary-investigator"/> <definition value="primary-investigator"/> </concept> <concept> <code value="collaborator"/> <display value="collaborator"/> <definition value="collaborator"/> </concept> <concept> <code value="funding-source"/> <display value="funding-source"/> <definition value="funding-source"/> </concept> <concept> <code value="general-contact"/> <display value="general-contact"/> <definition value="general-contact"/> </concept> <concept> <code value="recruitment-contact"/> <display value="recruitment-contact"/> <definition value="recruitment-contact"/> </concept> <concept> <code value="sub-investigator"/> <display value="sub-investigator"/> <definition value="sub-investigator"/> </concept> <concept> <code value="study-director"/> <display value="study-director"/> <definition value="study-director"/> </concept> <concept> <code value="study-chair"/> <display value="study-chair"/> <definition value="study-chair"/> </concept> <concept> <code value="irb"/> <display value="Institutional Review Board"/> </concept> </CodeSystem>