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

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)

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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