G63

Billable

Polyneuropathy in diseases classified elsewhere

G63 is the ICD-10-CM code for Polyneuropathy in diseases classified elsewhere. It is a billable, specific code valid for reimbursement.

Status
Billable
Chapter
G00-G99
Edition
FY2026

G00-G99 Diseases of the nervous system

What this means — in plain language

MedlinePlus · NIH

What are peripheral nerves? Nerves are like wires that carry messages back and forth between your brain and your body. Your peripheral nerves branch off from your brain and spinal cord and connect to all parts of your body, including your muscles and organs. Peripheral nerves carry messages from your brain that control your movement, breathing, heartbeat, digestion, and more. They also carry messages from your body…

Read more about Peripheral Nerve Disorders at MedlinePlus ↗

Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.

Excludes1 — not coded here

  • polyneuropathy (in):
  • diabetes mellitus (E08-E13 with .42)
  • diphtheria (A36.83)
  • infectious mononucleosis complicated by polyneuropathy (B27.0-B27.9 with fifth character 1)
  • Lyme disease (A69.22)
  • mumps (B26.84)
  • postherpetic (B02.23)
  • rheumatoid arthritis (M05.5-)
  • scleroderma (M34.83)
  • systemic lupus erythematosus (M32.19)

Code first

  • underlying disease, such as:
  • amyloidosis (E85.-)
  • endocrine disease, except diabetes (E00-E07, E15-E16, E20-E34)
  • metabolic diseases (E70-E88)
  • neoplasm (C00-D49)
  • nutritional deficiency (E40-E64)

Medications indicated for this condition

FDA labeling

Drugs whose FDA labeling lists this condition's category among its indications. Informational only — not a treatment recommendation or medical advice.

Frequently asked questions

What is ICD-10 code G63?
G63 is the ICD-10-CM code for "Polyneuropathy in diseases classified elsewhere". It falls under G00-G99 Diseases of the nervous system.
Is G63 a billable code?
Yes — G63 is a billable, specific ICD-10-CM code valid for reimbursement.
What is excluded from G63?
Excludes1 (not coded here): polyneuropathy (in):; diabetes mellitus (E08-E13 with .42); diphtheria (A36.83); infectious mononucleosis complicated by polyneuropathy (B27.0-B27.9 with fifth character 1).

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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