C47.5 Malignant neoplasm of peripheral nerves of pelvis

ICD-10-CM Code C47.5: Malignant neoplasm of peripheral nerves of pelvis

ICD-10-CM code C47.5 identifies a malignant neoplasm of peripheral nerves of the pelvis. The terminology is active and falls under the parent category for malignant neoplasms of peripheral nerves and the autonomic nervous system. This diagnosis concept is referenced in clinical coding and billing contexts. 1 5

Plain-language overview

Code C47.5 designates a malignant neoplastic process specifically located in the peripheral nerves of the pelvis, providing a standardized diagnosis label for patients, clinicians, and coding professionals. 1

What this code represents

The official display label for C47.5 is malignant neoplasm of peripheral nerves of pelvis, and the concept's semantic type is classified as a neoplastic process. 1

C47.5 is a narrower concept under the parent code C47, which encompasses malignant neoplasms of peripheral nerves and the autonomic nervous system more broadly. 1

Coding details

The C47.5 terminology record is active for the 2026 version of ICD-10-CM, and the concept possesses narrower descendant concepts within the same terminology hierarchy. 1

Documentation considerations

A related terminology concept for a primary malignant neoplasm of peripheral nerves of pelvis maps directly to the ICD-10-CM code C47.5, establishing a cross-system linkage for this specific diagnosis. 4

Coverage and utilization context

The C47.5 code appears within a Medicare billing and coding article for peripheral nerve blocks, situated alongside other peripheral nerve neoplasm codes like C47.6 and C47.8. 5

A separate version of the peripheral nerve blocks article indicates that it contains coding guidelines complementing a Local Coverage Determination for peripheral nerve blocks. 6

What the sources add

While the terminology record defines C47.5 as an active diagnosis, the Medicare billing articles provide operational context by listing the code within procedural coding guidance for peripheral nerve blocks. 1 5

Clinical context

Clinical literature classifies malignant peripheral nerve sheath tumors under World Health Organization frameworks, noting these malignancies occur in major peripheral nerves and their branches. 2

Sources

1. ICD-10-CM C47.5 terminology record — National Cancer Institute Enterprise Vocabulary Services; accessed 2026-07-27.
2. Diagnosis and Treatment of Peripheral and Cranial Nerve Tumors with Expert Recommendations: An EUropean Network for RAre CANcers (EURACAN) Initiative — pmc.ncbi.nlm.nih.gov; accessed 2026-07-27.
3. 2021 ICD-10-CM Casefinding List for FCDS Reporting — fcds.med.miami.edu; accessed 2026-07-27.
4. EVS Explore — evsexplore.semantics.cancer.gov; accessed 2026-07-27.
5. Article - Billing and Coding: Peripheral Nerve Blocks (A57452) — cms.gov; accessed 2026-07-27.
6. Article - Billing and Coding: Peripheral Nerve Blocks (A57452) — cms.gov; accessed 2026-07-27.