G30Header code — not billable

Alzheimer's disease

Chapter
6. Diseases of the nervous system
Category
G30
Effective date
October 1, 2026

Related codes in category G30

G30.0Alzheimer's disease with early onsetYesG30.1Alzheimer's disease with late onsetYesG30.8Other Alzheimer's diseaseYesG30.9Alzheimer's disease, unspecifiedYes

Frequently asked questions

What is ICD-10 code G30?

G30 is an ICD-10-CM diagnosis code for Alzheimer's disease.

Is G30 a billable code?

No. G30 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 G30 in?

G30 falls under Chapter 6: Diseases of the nervous system.

When did G30 become effective?

G30 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.

What other codes are related to G30?

G30 belongs to category G30, which includes 4 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.