ICD-10 Code C25.9 – Malignant neoplasm of pancreas, unspecified (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code C25.9 – Malignant neoplasm of pancreas, unspecified
What it is
C25.9 identifies a malignant neoplasm in the pancreas when the specific site within the pancreas is not documented. Use it when the record confirms pancreatic cancer but does not specify head, body, tail, or another location.
Clinical signs
Clinical features vary; refer to documentation. Common findings may include abdominal pain, jaundice, weight loss, or imaging evidence of a pancreatic mass, but the diagnosis must be supported by the provider’s record.
When to use this code
Use C25.9 when the provider documents pancreatic cancer and no more specific pancreatic subsite is available. It also fits when pathology or imaging confirms malignancy, but the chart does not identify the exact location. If later documentation names a specific site, code that more precise option instead.
Do not use for
Do not use C25.9 if the documentation identifies a specific pancreatic subsite, such as head or tail. Do not assign it for benign pancreatic lesions, secondary malignancy, or suspected cancer without confirmed diagnosis; check documentation.
Coding tip
Review pathology, operative notes, and imaging carefully; if the pancreatic subsite is documented, choose the more specific code rather than C25.9.