ICD-10 Code K86.1 – Other chronic pancreatitis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code K86.1 – Other chronic pancreatitis
What it is
K86.1 identifies chronic inflammation of the pancreas that does not fit a more specific chronic pancreatitis category. Use it when the record supports a long-standing pancreatic disorder with ongoing structural or functional damage.
Clinical signs
Common findings include recurrent or persistent upper abdominal pain, pancreatic calcifications, ductal changes, or evidence of exocrine insufficiency. Clinical features vary; refer to documentation.
When to use this code
Use this code when the provider documents chronic pancreatitis but does not specify another type such as alcohol-induced, hereditary, or idiopathic. It also fits cases described as “other chronic pancreatitis” or similar wording. Check the note for the exact etiology and any linked complications.
Do not use for
Do not use K86.1 for acute pancreatitis or for chronic pancreatitis with a documented more specific cause or subtype. If the record is unclear, check documentation.
Coding tip
Code the documented chronic pancreatitis first, then capture any stated cause or associated pancreatic complication separately when supported.