ICD-10 Code C47.3 – Malignant neoplasm of peripheral nerves of thorax (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code C47.3 – Malignant neoplasm of peripheral nerves of thorax
What it is
C47.3 identifies a malignant tumor arising from the peripheral nerves in the thorax. Use it when the documentation clearly states cancer of a peripheral nerve site in the chest wall or thoracic region.
Clinical signs
Clinical features vary; refer to documentation. Commonly, records describe a mass, pain, neurologic symptoms, or imaging and pathology confirming malignant peripheral nerve involvement in the thorax.
When to use this code
Use C47.3 when the provider documents a primary malignant neoplasm of a peripheral nerve located in the thorax. It also fits operative, radiology, or pathology reports that specify this thoracic nerve site. If the record only says “nerve tumor” or the location is unclear, check documentation before coding.
Do not use for
Do not use this code for benign peripheral nerve tumors, metastatic disease to the thorax, or malignant neoplasms of other chest structures. Check documentation if the site is not specifically a peripheral nerve.
Coding tip
Confirm both malignancy and thoracic peripheral nerve origin in the record before assigning C47.3.