ICD-10 Code K85.11 – Biliary acute pancreatitis with uninfected necrosis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code K85.11 – Biliary acute pancreatitis with uninfected necrosis
What it is
K85.11 identifies acute pancreatitis caused by biliary disease, with pancreatic tissue necrosis that is not infected. Use it when the record links the pancreatitis to gallstones, sludge, or another biliary source.
Clinical signs
Common findings include acute upper abdominal pain, nausea, vomiting, and imaging or clinical evidence of pancreatic necrosis. Clinical features vary; refer to documentation.
When to use this code
Use this code when the provider documents biliary acute pancreatitis and specifies uninfected necrosis. It fits cases where the acute episode is tied to a biliary cause and necrosis is present without documented infection. If the cause or necrosis status is unclear, check documentation.
Do not use for
Do not use this code for pancreatitis without necrosis, infected necrosis, or pancreatitis from nonbiliary causes. Do not assume biliary origin unless it is documented.
Coding tip
Verify both the biliary cause and the “uninfected necrosis” detail before assigning K85.11.