ICD-10 Code C40.11 – Malignant neoplasm of short bones of right upper limb (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code C40.11 – Malignant neoplasm of short bones of right upper limb
What it is
C40.11 identifies a malignant tumor arising in the short bones of the right upper limb, such as the carpal or metacarpal bones. Use this code when the documentation specifies a primary cancer in that right-sided site.
Clinical signs
Clinical features may include localized pain, swelling, or a palpable mass in the right hand or wrist area. Imaging and pathology typically support the diagnosis; clinical features vary, so refer to documentation.
When to use this code
Use C40.11 when the provider documents a primary malignant neoplasm in the short bones of the right upper limb. It applies to tumors explicitly located in the right carpal or metacarpal bones, or equivalent short bones of that limb. Verify laterality and bone site in the record.
Do not use for
Do not use this code for benign bone tumors, metastatic disease to the bone, or malignancies in other parts of the upper limb. Check documentation if the site or laterality is unclear.
Coding tip
Always confirm both the anatomic site and right-sided laterality before assigning C40.11.