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G01 ICD-10-CM Code: Meningitis in bacterial diseases classified elsewhere

A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.

Official description

G01

Meningitis in bacterial diseases classified elsewhere

ICD-10-CM diagnosis code · United States clinical modification

Where G01 sits

  1. 1

    Chapter 6

    Diseases of the nervous system (G00-G99)

  2. 2

    Section

    Inflammatory diseases of the central nervous system (G00-G09)

  3. 3

    Category G01

    Meningitis in bacterial diseases classified elsewhere

  4. 4

    Code G01

    Meningitis in bacterial diseases classified elsewhere

Notes for this code

Inclusion terms

No inclusion terms are listed for G01.

Code first

  • underlying disease

Use additional code

No “use additional code” instruction is listed for G01.

Excludes1

Conditions that should not be reported together with this code.

  • meningitis (in):
  • gonococcal (A54.81)
  • leptospirosis (A27.81)
  • listeriosis (A32.11)
  • Lyme disease (A69.21)
  • meningococcal (A39.0)
  • neurosyphilis (A52.13)
  • tuberculosis (A17.0)
  • meningoencephalitis and meningomyelitis in bacterial diseases classified elsewhere (G05)

Excludes2

Conditions not included here that may be reported separately when present.

No Excludes2 note is listed for G01.

Source and release

Data release
U.S. ICD-10-CM · FY 2027
Effective date
Oct 1, 2026

This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.

Review the CDC/NCHS ICD-10-CM source

Frequently asked questions

What does ICD-10-CM code G01 mean?

G01 is the FY 2027 U.S. ICD-10-CM code for “Meningitis in bacterial diseases classified elsewhere.”

Is G01 a billable or specific ICD-10-CM code?

Yes. In the FY 2027 reference data used on this page, G01 has no child codes and is presented as a billable/specific code. Always confirm the active code set and payer requirements before use.

Where is G01 located in ICD-10-CM?

G01 is listed in Chapter 6, Diseases of the nervous system (G00-G99), within Inflammatory diseases of the central nervous system (G00-G09) (G00–G09), under category G01, Meningitis in bacterial diseases classified elsewhere.

What coding notes are listed for G01?

No inclusion terms are listed for G01 in this reference record. Code-first instructions: underlying disease. Excludes1 notes: meningitis (in):; gonococcal (A54.81); leptospirosis (A27.81); listeriosis (A32.11); Lyme disease (A69.21); meningococcal (A39.0); neurosyphilis (A52.13); tuberculosis (A17.0); meningoencephalitis and meningomyelitis in bacterial diseases classified elsewhere (G05). No Excludes2 note is listed.