2026 ICD-10-CM Diagnosis Code C47.6Malignant neoplasm of peripheral nerves of trunk, unspecified
ICD-10-CM Codes›C00–D49›C45-C49›C47
- Billable — Valid for Submission
- Chronic Condition
C47.6 is a billable ICD-10-CM diagnosis code for malignant neoplasm of peripheral nerves of trunk, unspecified. 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 primary malignant neoplasm of peripheral nerves of trunk. 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.
- Primary malignant neoplasm of peripheral nerves of trunk
Tabular List NotesGuidance
Coding notes and annotation back-references applicable to this code.
Inclusion Terms
- Malignant neoplasm of peripheral nerves of unspecified part of trunk
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
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) › lumbar | C47.6 | C79.89 | – | D36.17 | D48.2 | D49.2 |
| nerve (ganglion) › peripheral NEC › back | C47.6 | C79.89 | – | D36.17 | D48.2 | D49.2 |
| nerve (ganglion) › peripheral NEC › flank | C47.6 | C79.89 | – | D36.17 | D48.2 | D49.2 |
| nerve (ganglion) › peripheral NEC › trunk | C47.6 | C79.89 | – | D36.17 | D48.2 | D49.2 |
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Convert C47.6 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About C47.6Overview
Is C47.6 a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report malignant neoplasm of peripheral nerves of trunk, unspecified on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What MS-DRG does C47.6 group to?
When malignant neoplasm of peripheral nerves of trunk, unspecified 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 C47.6?
Under the General Equivalence Mappings, malignant neoplasm of peripheral nerves of trunk, unspecified converts to ICD-9-CM 171.7 (mal neopl trunk NOS). 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.
