Question: Answer: Some insurance companies may prefer S8037 (Magnetic resonance cholangiopancreatography). According to the HCPCS manual, Blue Cross/Blue Shield and the Health Insurance Association of America use S codes to report drugs, services and supplies that have no national codes. Medicaid may also use these codes, but Medicare won't pay them. For acute pancreatitis, you should report 577.0 (Acute pancreatitis).