G00

ICD-10Non-billable category

Bacterial meningitis, not elsewhere classified

Official ICD-10-CM descriptor (FY2026)

Bacterial meningitis, not elsewhere classified

G00 is a category heading, not a billable code. CMS does not accept it on a claim; report one of the more specific codes beneath it.

Includes

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

Excludes1

Not coded here. An Excludes1 code should never be reported at the same time as the code above it.

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

More specific codes under G00

Where this code sits

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Source

ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.

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