Is G63 a billable ICD-10-CM code?

Yes. G63 is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does G63 sit in the tabular list?

Diseases of the nervous system (G00-G99), in the block Polyneuropathies and other disorders of the peripheral nervous system (G60-G65).

What cannot be coded together with G63?

G63 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.

G63

G63 — Polyneuropathy in diseases classified elsewhere

Billable / specific codeICD-10-CM

G63 is a billable, specific ICD-10-CM code for polyneuropathy in diseases classified elsewhere. It is valid for submission on a claim.

Excludes1 — never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

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

The underlying condition must be sequenced before this code.

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)

Risk adjustment

G63 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

Medicare coverage

G63 is named in 23 Medicare coverage policies — 19 listing it as supporting medical necessity, and 4 listing it as NOT covered. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

A56034Billing and Coding: Nerve Blockade for Treatment of Chronic Pain and Neuropathynot covered
A56731Billing and Coding: Nerve Blocks and Electrostimulation for Peripheral Neuropathynot covered
A57589Billing and Coding: Nerve Blocks for Peripheral Neuropathynot covered
A57663Billing and Coding: Nerve Blocks for Peripheral Neuropathynot covered

Questions about G63

Is G63 a billable ICD-10-CM code?: Yes. G63 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does G63 sit in the tabular list?: Diseases of the nervous system (G00-G99), in the block Polyneuropathies and other disorders of the peripheral nervous system (G60-G65).
What cannot be coded together with G63?: G63 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.