ICD-10 Code C76.2 – Malignant neoplasm of abdomen (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code C76.2 – Malignant neoplasm of abdomen
What it is
C76.2 identifies a malignant neoplasm of the abdomen when the exact primary site is not documented or cannot be assigned to a more specific code. Use it for an abdominal cancer described in general terms only.
Clinical signs
Clinical features vary; refer to documentation. Abdominal malignancies may present with pain, mass, distention, weight loss, or nonspecific gastrointestinal symptoms, but the code is based on the documented site, not symptoms.
When to use this code
Use C76.2 when the provider documents a malignant tumor of the abdomen and does not specify a more exact anatomic origin. It is appropriate for records that state “abdominal cancer” or “malignancy of abdomen” without further detail. If the pathology or note identifies a specific organ, code that site instead.
Do not use for
Do not use this code for benign abdominal masses, metastatic disease to the abdomen, or cancers with a clearly documented primary site elsewhere. Check documentation when the report names a specific organ or peritoneal involvement.
Coding tip
Query for the primary site whenever the chart only says “abdominal malignancy,” because a more specific code is usually available.