C47.9 Malignant neoplasm of peripheral nerves and autonomic nervous system, unspecified

Billable ICD-10-CM code, FY2026. Acts as a Complication or Comorbidity (CC) as a secondary diagnosis.

Applicable to

• Malignant neoplasm of unspecified site of peripheral nerves and autonomic nervous system

Applies from C47 Malignant neoplasm of peripheral nerves and autonomic nervous system

Includes

• malignant neoplasm of sympathetic and parasympathetic nerves and ganglia

Excludes1 (never code together)

• Kaposi's sarcoma of soft tissue (C46.1)

Risk adjustment (HCC)

• CMS-HCC V28: HCC 21 — Lymphoma and Other Cancers
• CMS-HCC V22: HCC 10 — Lymphoma and Other Cancers
• RxHCC V08: HCC 22 — Prostate, Breast, Bladder, and Other Cancers and Tumors
• ESRD V24: HCC 10

MS-DRG index

Defines the logic of DRG(s) 542-544 in MDC 08.

Approximate ICD-9-CM (GEMs)

• 171.9 Malignant neoplasm of connective and other soft tissue, site unspecified (approximate)

Code annotations containing back-references to C47.9

Back-references to C47

• Type 2 Excludes: C49 Malignant neoplasm of other connective and soft tissue ("malignant neoplasm of peripheral nerves and autonomic nervous system (C47.-)")
• Type 1 Excludes: C72 Malignant neoplasm of spinal cord, cranial nerves and other parts of central nervous system ("malignant neoplasm of peripheral nerves and autonomic nervous system (C47.-)")

Nearby codes

• C47.3 Malignant neoplasm of peripheral nerves of thorax
• C47.4 Malignant neoplasm of peripheral nerves of abdomen
• C47.5 Malignant neoplasm of peripheral nerves of pelvis
• C47.6 Malignant neoplasm of peripheral nerves of trunk, unspecified
• C47.8 Malignant neoplasm of overlapping sites of peripheral nerves and autonomic nervous system
• C47.9 Malignant neoplasm of peripheral nerves and autonomic nervous system, unspecified (this code)