ICD-10 Code K85.82 – Other acute pancreatitis with infected necrosis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code K85.82 – Other acute pancreatitis with infected necrosis
What it is
K85.82 identifies an acute pancreatitis episode complicated by infected pancreatic necrosis. Use it when documentation shows necrotic pancreatic tissue with infection, but the case does not fit a more specific acute pancreatitis code.
Clinical signs
Clinical features vary; refer to documentation. Common findings include acute upper abdominal pain, systemic illness, and imaging or procedural evidence of pancreatic necrosis with infection.
When to use this code
Use K85.82 when the provider documents acute pancreatitis and specifically states infected necrosis. It is appropriate for inpatient or specialty notes describing necrotizing pancreatitis with infection confirmed by imaging, surgery, or clinical assessment. Check documentation if the record only says necrosis without infection.
Do not use for
Do not use this code for uncomplicated acute pancreatitis, sterile necrosis, or chronic pancreatitis. If the chart names a different acute pancreatitis subtype, code that more specific diagnosis instead.
Coding tip
Code the infection only when it is clearly documented as part of the pancreatitis episode; otherwise, check documentation.