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.
Code definition
Official description
G63Polyneuropathy in diseases classified elsewhere
ICD-10-CM diagnosis code · United States clinical modification
Classification
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
Documentation details
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.
Transparency
Source and release
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.
Review the CDC/NCHS ICD-10-CM sourceCode-specific guidance
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.
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