G35Header code — not billable

Multiple sclerosis

Chapter
6. Diseases of the nervous system
Category
G35
Effective date
October 1, 2026

Related codes in category G35

Frequently asked questions

What is ICD-10 code G35?

G35 is an ICD-10-CM diagnosis code for Multiple sclerosis.

Is G35 a billable code?

No. G35 is a category/header code, not billable on its own — use one of its more specific child codes instead.

What ICD-10-CM chapter is G35 in?

G35 falls under Chapter 6: Diseases of the nervous system.

When did G35 become effective?

G35 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.

What other codes are related to G35?

G35 belongs to category G35, which includes 10 other codes — see the related codes list on this page.

ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.