ICD-10-CM > K00-K95 > K80-K87 > K85 > K85.0 K85.0 Idiopathic acute pancreatitis Non-Billable/Non-Specific Codes K85.00Idiopathic acute pancreatitis without necrosis or infectionK85.01Idiopathic acute pancreatitis with uninfected necrosisK85.02Idiopathic acute pancreatitis with infected necrosis