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

CodeDisplayDefinition
BILL BillingContact details for information regarding to billing/general finance enquiries.
ADMIN AdministrativeContact details for administrative enquiries.
HR Human ResourceContact details for issues related to Human Resources, such as staff matters, OH&S etc.
PAYOR PayorContact details for dealing with issues related to insurance claims/adjudication/payment.
PATINF PatientGeneric information contact for patients.
PRESS PressDedicated contact point for matters relating to press enquiries.