- Recent (within the past 3 weeks) hospitalization with acute pancreatitis, and at least one previous episode of acute pancreatitis in the past 12 months; acute pancreatitis is defined any 2 of the following: (1) typical upper abdominal pain; (2) elevation in serum amylase or lipase >= 3 times upper limit of normal; (3) features of acute pancreatitis on cross-sectional imaging