Pulmonary ventilation imaging. Assign the CPT code

This information is printed on the UB-04 claim form to represent the cost center (e.g., lab, radiology, cardiology, respiratory, etc.) for the department in which the item is provided. It is used for Medicare billing

A. HCPCS C. charge/service code B. revenue code D. general ledger key

Name two forms of Prepaid Group Practices (PGPs)