2026 ICD-10-CM Diagnosis Code C47.5Malignant neoplasm of peripheral nerves of pelvis
ICD-10-CM Codes›C00–D49›C45-C49›C47
- Billable — Valid for Submission
- Chronic Condition
C47.5 is a billable ICD-10-CM diagnosis code for malignant neoplasm of peripheral nerves of pelvis. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 542 through 544. Coders also document this condition as malignant neoplasm of peripheral nerve of pelvis. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Nervous system cancers - all other types.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Malignant neoplasm of peripheral nerve of pelvis
- Malignant nerve sheath neoplasm of peripheral nerve of pelvis
- Neoplasm of peripheral nerve of pelvis
- Primary malignant neoplasm of peripheral nerves of pelvis
- Primary malignant neoplasm of peripheral nerves of trunk
- Primary malignant nerve sheath neoplasm of peripheral nerve of pelvis
- Primary malignant nerve sheath neoplasm of peripheral nervous system structure
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Clinical InformationClinical
Lumbosacral Plexus
the lumbar and sacral plexuses taken together. the fibers of the lumbosacral plexus originate in the lumbar and upper sacral spinal cord (l1 to s3) and innervate the lower extremities.
Table of NeoplasmsClinical
Anatomical sites in the Table of Neoplasms that reference this code family.
| Site | Malig. Primary | Malig. Secondary | Ca in situ | Benign | Uncertain | Unspec. |
|---|---|---|---|---|---|---|
| lumbosacral plexus | C47.5 | C79.89 | – | D36.16 | D48.2 | D49.2 |
| nerve (ganglion) › peripheral NEC › buttock | C47.5 | C79.89 | – | D36.16 | D48.2 | D49.2 |
| nerve (ganglion) › peripheral NEC › extrarectal | C47.5 | C79.89 | – | D36.16 | D48.2 | D49.2 |
| nerve (ganglion) › peripheral NEC › gluteal region | C47.5 | C79.89 | – | D36.16 | D48.2 | D49.2 |
| nerve (ganglion) › peripheral NEC › groin | C47.5 | C79.89 | – | D36.16 | D48.2 | D49.2 |
| nerve (ganglion) › peripheral NEC › inguinal (canal) (region) | C47.5 | C79.89 | – | D36.16 | D48.2 | D49.2 |
| nerve (ganglion) › peripheral NEC › ischiorectal fossa | C47.5 | C79.89 | – | D36.16 | D48.2 | D49.2 |
| nerve (ganglion) › peripheral NEC › nates | C47.5 | C79.89 | – | D36.16 | D48.2 | D49.2 |
| nerve (ganglion) › peripheral NEC › pararectal | C47.5 | C79.89 | – | D36.16 | D48.2 | D49.2 |
| nerve (ganglion) › peripheral NEC › paraurethral | C47.5 | C79.89 | – | D36.16 | D48.2 | D49.2 |
| nerve (ganglion) › peripheral NEC › paravaginal | C47.5 | C79.89 | – | D36.16 | D48.2 | D49.2 |
| nerve (ganglion) › peripheral NEC › pelvis (floor) | C47.5 | C79.89 | – | D36.16 | D48.2 | D49.2 |
| nerve (ganglion) › peripheral NEC › perineum | C47.5 | C79.89 | – | D36.16 | D48.2 | D49.2 |
| nerve (ganglion) › peripheral NEC › perirectal (tissue) | C47.5 | C79.89 | – | D36.16 | D48.2 | D49.2 |
| nerve (ganglion) › peripheral NEC › periurethral (tissue) | C47.5 | C79.89 | – | D36.16 | D48.2 | D49.2 |
| nerve (ganglion) › peripheral NEC › presacral | C47.5 | C79.89 | – | D36.16 | D48.2 | D49.2 |
| nerve (ganglion) › peripheral NEC › rectovaginal septum or wall | C47.5 | C79.89 | – | D36.16 | D48.2 | D49.2 |
| nerve (ganglion) › peripheral NEC › rectovesical | C47.5 | C79.89 | – | D36.16 | D48.2 | D49.2 |
| nerve (ganglion) › peripheral NEC › sacrococcygeal region | C47.5 | C79.89 | – | D36.16 | D48.2 | D49.2 |
| nerve (ganglion) › peripheral NEC › vesicorectal | C47.5 | C79.89 | – | D36.16 | D48.2 | D49.2 |
| nerve (ganglion) › sacral | C47.5 | C79.89 | – | D36.16 | D48.2 | D49.2 |
| plexus › lumbosacral | C47.5 | C79.89 | – | D36.16 | D48.2 | D49.2 |
| plexus › sacral | C47.5 | C79.89 | – | D36.16 | D48.2 | D49.2 |
Patient EducationClinical
Cancer
Cancer is not just one disease but many diseases. Cancer begins in your cells, which are the building blocks of your body. Usually, your body forms new cells as needed, replacing old cells that die. Sometimes this process goes wrong. New cells grow even when you don't need them, and old cells don't die when they should.
The full article covers:
- What is cancer?
- What are the types of cancer?
- How does cancer develop?
- What are the symptoms of cancer?
- How is cancer diagnosed?
- What are the treatments for cancer?
- Can cancer be prevented?
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert C47.5 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About C47.5Overview
Is C47.5 a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report malignant neoplasm of peripheral nerves of pelvis on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What MS-DRG does C47.5 group to?
When malignant neoplasm of peripheral nerves of pelvis is the principal diagnosis on an inpatient stay, it groups to MS-DRG 542, 543, 544, with relative weights from 0.7546 to 1.7665 depending on complications. Higher weights mean higher Medicare reimbursement.
What is the ICD-9 equivalent of C47.5?
Under the General Equivalence Mappings, malignant neoplasm of peripheral nerves of pelvis converts to ICD-9-CM 171.6 (mal neo soft tis pelvis). The mapping is approximate, so confirm the match fits the documentation.
Footnotes
[1] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:
- The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
- The condition places limitations on self-care, independent living, and social interactions.
