This code system http://terminology.hl7.org/CodeSystem/contractactorrole defines the following codes:

CodeDisplayDefinition
practitioner PractitionerSomeone who provides health care related services to people or animals including both clinical and support services.
patient PatientA receiver, human or animal, of health care related goods and services.
 <status value="draft"/> <experimental value="false"/> <date value="2022-09-14T03:23:03-06:00"/> <publisher value="CBCC"/> <contact> <telecom> <system value="url"/> <value value="http://hl7.org/fhir"/> </telecom> </contact> <description value="This value set includes sample Contract Actor Role codes."/> <copyright value="This is an example set."/> <caseSensitive value="true"/> <valueSet value="http://terminology.hl7.org/ValueSet/contract-actorrole"/> <content value="complete"/> <concept> <code value="practitioner"/> <display value="Practitioner"/> <definition value="Someone who provides health care related services to people or animals including both clinical and support services."/> </concept> <concept> <code value="patient"/> <display value="Patient"/> <definition value="A receiver, human or animal, of health care related goods and services."/> </concept> </CodeSystem>