Idiopathic acute pancreatitis with infected necrosis

This code signifies an acute inflammation of the pancreas that has no identifiable cause (idiopathic) and is complicated by the presence of infected necrotic tissue. This severe form of pancreatitis involves the death of pancreatic tissue, which has subsequently become infected, leading to a potentially life-threatening condition.

Assign this code when documentation clearly indicates acute pancreatitis of unknown etiology, coupled with evidence of infected pancreatic necrosis. This typically requires imaging studies (e.g., CT scan) confirming necrosis and microbiological cultures or strong clinical suspicion of infection. Use this code when the physician explicitly states "idiopathic acute pancreatitis with infected necrosis."

• Ensure documentation specifies "idiopathic" as the cause; otherwise, a code for acute pancreatitis with other specified or unspecified etiology should be used.
• Confirm the presence of "infected necrosis" through physician documentation, often supported by imaging and/or culture results.
• Do not confuse with sterile necrosis; this code specifically requires the infection component.