G00

Non-billable

Bacterial meningitis, not elsewhere classified

G00 is the ICD-10-CM code for Bacterial meningitis, not elsewhere classified. It is a non-billable category code — use a more specific child code such as G00.0 for billing.

Status
Header (non-billable)
Chapter
G00-G99
Subcodes
6
Edition
FY2026

G00-G99 Diseases of the nervous system

What this means — in plain language

MedlinePlus · NIH

Meningitis is inflammation of the thin tissue that surrounds the brain and spinal cord, called the meninges. There are several types of meningitis. The most common is viral meningitis. You get it when a virus enters the body through the nose or mouth and travels to the brain. Bacterial meningitis is rare but can be deadly. It usually starts with bacteria that cause a cold-like infection. It can cause stroke ,…

Read more about Meningitis at MedlinePlus ↗

Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.

Includes

  • bacterial arachnoiditis
  • bacterial leptomeningitis
  • bacterial meningitis
  • bacterial pachymeningitis

Excludes1 — not coded here

  • bacterial meningoencephalitis (G04.2)
  • bacterial meningomyelitis (G04.2)

Medications indicated for this condition

FDA labeling

Drugs whose FDA labeling lists this condition's category among its indications. Informational only — not a treatment recommendation or medical advice.

Frequently asked questions

What is ICD-10 code G00?
G00 is the ICD-10-CM code for "Bacterial meningitis, not elsewhere classified". It falls under G00-G99 Diseases of the nervous system.
Is G00 a billable code?
No — G00 is a non-billable header code. Use a more specific child code (such as G00.0) for billing.
What are the subcodes of G00?
G00 has 6 more specific child codes, including G00.0, G00.1, G00.2.
What is excluded from G00?
Excludes1 (not coded here): bacterial meningoencephalitis (G04.2); bacterial meningomyelitis (G04.2).

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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