ICD-10 Code C47.5 – Malignant neoplasm of peripheral nerves of pelvis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code C47.5 – Malignant neoplasm of peripheral nerves of pelvis
What it is
C47.5 identifies a malignant tumor arising from the peripheral nerves in the pelvic region. Use it when the record documents cancer of pelvic peripheral nerves, not a nearby organ or soft tissue site.
Clinical signs
Clinical features vary; refer to documentation. Patients may have a pelvic mass, localized pain, or neurologic symptoms from nerve involvement, but the diagnosis should be supported by imaging, pathology, or specialist assessment.
When to use this code
Use C47.5 when the provider specifies a malignant neoplasm of peripheral nerves located in the pelvis. It is appropriate for confirmed primary or documented malignant nerve tumor in that anatomic site. If the site is described only as pelvic soft tissue or another structure, check documentation before coding.
Do not use for
Do not use this code for benign peripheral nerve tumors, metastatic disease to the pelvis, or malignancies of pelvic organs. If the note does not clearly identify peripheral nerves of the pelvis, check documentation.
Coding tip
Code the exact anatomic site and malignancy type as documented; when the nerve origin is unclear, query the provider.