ICD-10-CM > K00-K95 > K80-K87 > K85 > K85.1 K85.1 Biliary acute pancreatitis Non-Billable/Non-Specific Applicable To Gallstone pancreatitis Codes K85.10Biliary acute pancreatitis without necrosis or infectionK85.11Biliary acute pancreatitis with uninfected necrosisK85.12Biliary acute pancreatitis with infected necrosis