This code system http://terminology.hl7.org/CodeSystem/practitioner-role defines the following codes:

CodeDisplayDefinition
doctor DoctorA qualified/registered medical practitioner
nurse NurseA practitioner with nursing experience that may be qualified/registered
pharmacist PharmacistA qualified/registered/licensed pharmacist
researcher ResearcherA practitioner that may perform research
teacher Teacher/educatorSomeone who is able to provide educational services
ict ICT professionalSomeone who is qualified in Information and Communication Technologies
 <status value="draft"/> <experimental value="false"/> <date value="2021-03-06T13:53:33-07:00"/> <publisher value="FHIR Project team"/> <contact> <telecom> <system value="url"/> <value value="http://hl7.org/fhir"/> </telecom> </contact> <description value="This example value set defines a set of codes that can be used to indicate the role of a Practitioner."/> <copyright value="This resource includes content from SNOMED Clinical Terms® (SNOMED CT®) which is copyright of the International Health Terminology Standards Development Organisation (IHTSDO). Implementers of these specifications must have the appropriate SNOMED CT Affiliate license - for more information contact http://www.snomed.org/snomed-ct/get-snomed-ct or info@snomed.org"/> <caseSensitive value="true"/> <content value="complete"/> <concept> <code value="doctor"/> <display value="Doctor"/> <definition value="A qualified/registered medical practitioner"/> </concept> <concept> <code value="nurse"/> <display value="Nurse"/> <definition value="A practitioner with nursing experience that may be qualified/registered"/> </concept> <concept> <code value="pharmacist"/> <display value="Pharmacist"/> <definition value="A qualified/registered/licensed pharmacist"/> </concept> <concept> <code value="researcher"/> <display value="Researcher"/> <definition value="A practitioner that may perform research"/> </concept> <concept> <code value="teacher"/> <display value="Teacher/educator"/> <definition value="Someone who is able to provide educational services"/> </concept> <concept> <code value="ict"/> <display value="ICT professional"/> <definition value="Someone who is qualified in Information and Communication Technologies"/> </concept> </CodeSystem>