G00
⚠ Non-billable
Bacterial meningitis, not elsewhere classified
ICD-10-CM · FY2026 · Diseases of the Nervous System
Code
G00
System
ICD-10-CM
Billable
No — use specific code
Effective
FY2026
Chapter
Diseases of the Nervous System
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.
Official coding notes
From CMS's ICD-10-CM Tabular List.
Includes
- bacterial arachnoiditis
- bacterial leptomeningitis
- bacterial meningitis
- bacterial pachymeningitis
Excludes1 — never code together
- bacterial meningoencephalitis (G04.2)
- bacterial meningomyelitis (G04.2)
Frequently asked questions
What is ICD-10 code G00?
ICD-10-CM code G00 represents Bacterial meningitis, not elsewhere classified. It is a non-billable header code requiring a more specific subcategory in the Diseases of the Nervous System chapter, effective October 1, 2025 – September 30, 2026.
Is G00 billable?
No. G00 is a non-billable header. Select a more specific subcategory for claims submission.
What chapter is G00 in?
G00 belongs to the Diseases of the Nervous System chapter (G00–G99) of ICD-10-CM.
Related codes in the G00 category
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