G00 – Bacterial meningitis, not elsewhere classified
ICD-10-CM 2027 diagnosis code · Inflammatory diseases of the central nervous system
ICD-10-CM code
G00
- Code
G00(claims format:G00)- Description
- Bacterial meningitis, not elsewhere classified
- Billable
- No – use a more specific code below
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 6. Diseases of the nervous system (G00-G99)
- Block
- G00-G09 Inflammatory diseases of the central nervous system
Billable codes under G00
G00 is a header code and cannot be used on claims. Choose the most specific code:
- G00.0 – Hemophilus meningitisBillable
- G00.1 – Pneumococcal meningitisBillable
- G00.2 – Streptococcal meningitisBillable
- G00.3 – Staphylococcal meningitisBillable
- G00.8 – Other bacterial meningitisBillable
- G00.9 – Bacterial meningitis, unspecifiedBillable
Notes for G00
Includes:
- bacterial arachnoiditis
- bacterial leptomeningitis
- bacterial meningitis
- bacterial pachymeningitis
Frequently asked questions
What is ICD-10 code G00?
G00 is the ICD-10-CM code for bacterial meningitis, not elsewhere classified, in the block G00-G09 (Inflammatory diseases of the central nervous system).
Is G00 a billable code?
No. G00 is a header code with more specific child codes; report one of the billable codes listed above.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.