G63 – Polyneuropathy in diseases classified elsewhere
ICD-10-CM 2027 diagnosis code · Polyneuropathies and other disorders of the peripheral nervous system
ICD-10-CM code
G63
- Code
G63(claims format:G63)- Description
- Polyneuropathy in diseases classified elsewhere
- Billable
- Yes – valid for HIPAA-covered transactions
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 6. Diseases of the nervous system (G00-G99)
- Block
- G60-G65 Polyneuropathies and other disorders of the peripheral nervous system
Notes for 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)
- Lyme disease (A69.22)
- mumps (B26.84)
- postherpetic (B02.23)
- rheumatoid arthritis (M05.5-)
- scleroderma (M34.83)
- systemic lupus erythematosus (M32.19)
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
Block G60-G65
Index terms for G63
Entries in the ICD-10-CM alphabetic index that lead to this code:
- Neuritis, gouty
- Polyneuropathy, amyloid
- Polyneuropathy, in, uremia
- Polyneuropathy, in, leprosy
- Neuritis, amyloid, any site
- Polyneuropathy, in, pellagra
- Polyneuropathy, in, porphyria
- Pellagra, with, polyneuropathy
- Neuropathy, neuropathic, uremic
- Polyneuropathy, nutritional NEC
- Polyneuropathy, in, hypoglycemia
- Polyneuropathy, in, deficiency, B
- Polyneuropathy, in, avitaminosis NEC
- Uremia, uremic, with, polyneuropathy
- Neuropathy, neuropathic, vitamin B12
- Polyneuropathy, in, neoplastic disease
- Polyneuropathy, in, lack of vitamin NEC
- Polyneuritis, polyneuritic, nutritional
- Polyneuropathy, in, parasitic disease NEC
- Polyneuropathy, in, amyloidosis, familial
- Polyneuropathy, in, metabolic disease NEC
- Polyneuropathy, in, endocrine disease NEC
- Polyneuropathy, in, deficiency, vitamin B6
- Polyneuropathy, in, vitamin B12 deficiency
- Polyneuropathy, in, infectious, disease NEC
Frequently asked questions
What is ICD-10 code G63?
G63 is the ICD-10-CM code for polyneuropathy in diseases classified elsewhere, in the block G60-G65 (Polyneuropathies and other disorders of the peripheral nervous system).
Is G63 a billable code?
Yes. G63 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.