Is G59 a billable ICD-10-CM code?

Yes. G59 is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does G59 sit in the tabular list?

Diseases of the nervous system (G00-G99), in the block Nerve, nerve root and plexus disorders (G50-G59).

What cannot be coded together with G59?

G59 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.

G59

G59 — Mononeuropathy in diseases classified elsewhere

Billable / specific codeICD-10-CM

G59 is a billable, specific ICD-10-CM code for mononeuropathy 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.

diabetic mononeuropathy (E08-E13 with .41)
syphilitic nerve paralysis (A52.19)
syphilitic neuritis (A52.15)
tuberculous mononeuropathy (A17.83)

Code first

The underlying condition must be sequenced before this code.

underlying disease

Risk adjustment

G59 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

G59 is named in 25 Medicare coverage policies — 22 listing it as supporting medical necessity, and 3 listing it as NOT covered. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

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
A53064Billing and Coding: Outpatient Occupational Therapy

Questions about G59

Is G59 a billable ICD-10-CM code?: Yes. G59 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does G59 sit in the tabular list?: Diseases of the nervous system (G00-G99), in the block Nerve, nerve root and plexus disorders (G50-G59).
What cannot be coded together with G59?: G59 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.