ICD-10-CM FY2027 diagnosis code

G59: Mononeuropathy in diseases classified elsewhere

Billable codeValid for dates of service October 1, 2026 to September 30, 2027

G59 is a billable ICD-10-CM diagnosis code for mononeuropathy in diseases classified elsewhere. It is specific enough to use on an insurance claim, a superbill or a Good Faith Estimate.

G59 questions

Is G59 a billable code?

Yes. G59 is a billable ICD-10-CM code and can be used on claims and superbills for dates of service from October 1, 2026 to September 30, 2027.

What does G59 mean?

G59 is the ICD-10-CM code for Mononeuropathy in diseases classified elsewhere. It is in chapter 6, Diseases of the nervous system (G00-G99).

Code titles come from the official ICD-10-CM files published by the CDC National Center for Health Statistics. Always check payer rules and the clinical record before billing.