ICD-10 Code C47.10 – Malignant neoplasm of peripheral nerves of unspecified upper limb, including shoulder (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code C47.10 – Malignant neoplasm of peripheral nerves of unspecified upper limb, including shoulder
What it is
This code identifies a malignant tumor arising from the peripheral nerves of the upper limb or shoulder when the exact site is not specified. Use it for documented cancer involving those nerves, not for benign nerve tumors or non-neoplastic nerve disorders.
Clinical signs
Clinical features vary; refer to documentation. Typical findings may include a growing mass, localized pain, numbness, weakness, or nerve dysfunction in the affected upper limb or shoulder.
When to use this code
Use C47.10 when the provider documents a malignant neoplasm of peripheral nerves in the upper limb or shoulder and does not name a more specific subsite. It also fits cases where the record confirms malignancy but the exact nerve or laterality is unclear. Check pathology, imaging, and operative notes for specificity.
Do not use for
Do not use this code for benign peripheral nerve tumors, nerve sheath lesions without malignancy, or metastatic disease to peripheral nerves. If the documentation names a more specific site or laterality, code that instead.
Coding tip
Query for laterality and exact nerve site whenever the record only says “upper limb” or “shoulder” malignancy.