G63 ICD-10-CM Code: Polyneuropathy in diseases classified elsewhere
A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.
Official description
G63Polyneuropathy in diseases classified elsewhere
ICD-10-CM diagnosis code · United States clinical modification
Where G63 sits
- 1
Chapter 6
Diseases of the nervous system (G00-G99)
- 2
Section
Polyneuropathies and other disorders of the peripheral nervous system (G60-G65)
- 3
Category G63
Polyneuropathy in diseases classified elsewhere
- 4
Code G63
Polyneuropathy in diseases classified elsewhere
Notes for this code
Inclusion terms
No inclusion terms are listed for G63.
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)
Use additional code
No “use additional code” instruction is listed for G63.
Excludes1
Conditions that should not be reported together with this code.
- 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)
Excludes2
Conditions not included here that may be reported separately when present.
No Excludes2 note is listed for G63.
Source and release
- Data release
- U.S. ICD-10-CM · FY 2027
- Effective date
- Oct 1, 2026
- Publisher
- Vero Scribe Inc.
This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.
Frequently asked questions
What does ICD-10-CM code G63 mean?
G63 is the FY 2027 U.S. ICD-10-CM code for “Polyneuropathy in diseases classified elsewhere.”
Is G63 a billable or specific ICD-10-CM code?
Yes. In the FY 2027 reference data used on this page, G63 has no child codes and is presented as a billable/specific code. Always confirm the active code set and payer requirements before use.
Where is G63 located in ICD-10-CM?
G63 is listed in Chapter 6, Diseases of the nervous system (G00-G99), within Polyneuropathies and other disorders of the peripheral nervous system (G60-G65) (G60–G65), under category G63, Polyneuropathy in diseases classified elsewhere.
What coding notes are listed for G63?
No inclusion terms are listed for G63 in this reference record. Code-first instructions: 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). Excludes1 notes: 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). No Excludes2 note is listed.