G00Header code — not billable

Bacterial meningitis, not elsewhere classified

Chapter
6. Diseases of the nervous system
Category
G00
Effective date
October 1, 2026

Related codes in category G00

G00.0Hemophilus meningitisYesG00.1Pneumococcal meningitisYesG00.2Streptococcal meningitisYesG00.3Staphylococcal meningitisYesG00.8Other bacterial meningitisYesG00.9Bacterial meningitis, unspecifiedYes

Frequently asked questions

What is ICD-10 code G00?

G00 is an ICD-10-CM diagnosis code for Bacterial meningitis, not elsewhere classified.

Is G00 a billable code?

No. G00 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 G00 in?

G00 falls under Chapter 6: Diseases of the nervous system.

When did G00 become effective?

G00 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.

What other codes are related to G00?

G00 belongs to category G00, which includes 6 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.