Acute pancreatitis with infected necrosis, unspecified

This code signifies an acute inflammation of the pancreas that has progressed to tissue death (necrosis) and subsequent infection, where the specific cause of the pancreatitis is not documented. It represents a severe complication of acute pancreatitis, often associated with a higher morbidity and mortality.

Apply this code when documentation clearly indicates acute pancreatitis with evidence of infected pancreatic necrosis, but the etiology (e.g., gallstone, alcohol) is not specified. Supporting documentation would include imaging reports (CT, MRI) showing necrosis and microbiological cultures confirming infection.

• Do not use this code if the underlying cause of the acute pancreatitis is known; instead, code the specific etiology with the appropriate K85.xx code.
• Ensure documentation differentiates between sterile necrosis and infected necrosis, as this significantly impacts code selection.
• Sequence this code as the primary diagnosis when it is the reason for the encounter, followed by codes for any associated complications or manifestations.