2026 ICD-10-CM Diagnosis Code C47.22Malignant neoplasm of peripheral nerves of left lower limb, including hip
ICD-10-CM Codes›C00–D49›C45-C49›C47
- Billable — Valid for Submission
- Chronic Condition
C47.22 is a billable ICD-10-CM diagnosis code for malignant neoplasm of peripheral nerves of left lower limb, including hip. 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 neoplasm of peripheral nerves of hip. 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.
- Neoplasm of peripheral nerves of hip
- Primary malignant neoplasm of peripheral nerve of left hip
- Primary malignant neoplasm of peripheral nerves of hip
- Primary malignant neoplasm of peripheral nerves of left lower limb
- Primary malignant neoplasm of peripheral nerves of lower limb
- Primary malignant neoplasm of peripheral nerves of trunk
- Primary malignant neoplasm of soft tissue of left hip
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Clinical InformationClinical
Sciatic Nerve
a nerve which originates in the lumbar and sacral spinal cord (l4 to s3) and supplies motor and sensory innervation to the lower extremity. the sciatic nerve, which is the main continuation of the sacral plexus, is the largest nerve in the body. it has two major branches, the tibial nerve and the peroneal nerve.Sciatic Neuropathy
disease or damage involving the sciatic nerve, which divides into the peroneal nerve and tibial nerve (see also peroneal neuropathies and tibial neuropathy). clinical manifestations may include sciatica or pain localized to the hip, paresis or paralysis of posterior thigh muscles and muscles innervated by the peroneal and tibial nerves, and sensory loss involving the lateral and posterior thigh, posterior and lateral leg, and sole of the foot. the sciatic nerve may be affected by trauma; ischemia; collagen diseases; and other conditions. (from adams et al., principles of neurology, 6th ed, p1363)
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. |
|---|---|---|---|---|---|---|
| nerve (ganglion) › femoral | C47.2 | C79.89 | – | D36.13 | D48.2 | D49.2 |
| nerve (ganglion) › obturator | C47.2 | C79.89 | – | D36.13 | D48.2 | D49.2 |
| nerve (ganglion) › olfactory | C47.2 | C79.49 | – | D33.3 | D43.3 | D49.7 |
| nerve (ganglion) › peripheral NEC › ankle | C47.2 | C79.89 | – | D36.13 | D48.2 | D49.2 |
| nerve (ganglion) › peripheral NEC › calf | C47.2 | C79.89 | – | D36.13 | D48.2 | D49.2 |
| nerve (ganglion) › peripheral NEC › extremity › lower | C47.2 | C79.89 | – | D36.13 | D48.2 | D49.2 |
| nerve (ganglion) › peripheral NEC › foot | C47.2 | C79.89 | – | D36.13 | D48.2 | D49.2 |
| nerve (ganglion) › peripheral NEC › heel | C47.2 | C79.89 | – | D36.13 | D48.2 | D49.2 |
| nerve (ganglion) › peripheral NEC › hip | C47.2 | C79.89 | – | D36.13 | D48.2 | D49.2 |
| nerve (ganglion) › peripheral NEC › knee | C47.2 | C79.89 | – | D36.13 | D48.2 | D49.2 |
| nerve (ganglion) › peripheral NEC › leg | C47.2 | C79.89 | – | D36.13 | D48.2 | D49.2 |
| nerve (ganglion) › peripheral NEC › limb NEC › lower | C47.2 | C79.89 | – | D36.13 | D48.2 | D49.2 |
| nerve (ganglion) › peripheral NEC › popliteal fossa or space | C47.2 | C79.89 | – | D36.13 | D48.2 | D49.2 |
| nerve (ganglion) › peripheral NEC › thigh | C47.2 | C79.89 | – | D36.13 | D48.2 | D49.2 |
| nerve (ganglion) › peripheral NEC › toe | C47.2 | C79.89 | – | D36.13 | D48.2 | D49.2 |
| nerve (ganglion) › sciatic | C47.2 | C79.89 | – | D36.13 | D48.2 | D49.2 |
| sciatic nerve | C47.2 | C79.89 | – | D36.13 | 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 C47.22 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About C47.22Overview
Is C47.22 a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report malignant neoplasm of peripheral nerves of left lower limb, including hip on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What MS-DRG does C47.22 group to?
When malignant neoplasm of peripheral nerves of left lower limb, including hip 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 C47.22?
Under the General Equivalence Mappings, malignant neoplasm of peripheral nerves of left lower limb, including hip converts to ICD-9-CM 171.3 (mal neo soft tissue leg). 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.
