ICD-10-CM G00: Bacterial meningitis, not elsewhere classified

ICD-10-CM Diagnosis Code (2025)

Official Description for G00

Bacterial meningitis, not elsewhere classified

Coding Notes & Guidelines for G00

Includes Notes
  • bacterial arachnoiditis
  • bacterial leptomeningitis
  • bacterial meningitis
  • bacterial pachymeningitis
Excludes1: Not Coded Here
  • bacterial meningoencephalitis (G04.2)
  • bacterial meningomyelitis (G04.2)
Use Additional Code

code to further identify organism (B95.0-B95.5)

Use Additional Code

code to further identify organism (B95.61-B95.8)

Use Additional Code

code to further identify organism (B96.-)

Inclusion Terms

Meningitis due to Hemophilus influenzae

Inclusion Terms

Meningtitis due to Streptococcal pneumoniae

Inclusion Terms
  • Meningitis due to Escherichia coli
  • Meningitis due to Friedländer's bacillus
  • Meningitis due to Klebsiella
Inclusion Terms
  • Meningitis due to gram-negative bacteria, unspecified
  • Purulent meningitis NOS
  • Pyogenic meningitis NOS
  • Suppurative meningitis NOS

Child Codes (More Specific Codes for G00):

G00.0 - Hemophilus meningitis G00.1 - Pneumococcal meningitis G00.2 - Streptococcal meningitis G00.3 - Staphylococcal meningitis G00.8 - Other bacterial meningitis G00.9 - Bacterial meningitis, unspecified

About ICD-10-CM Code G00 (Bacterial meningitis)

ICD-10-CM code G00 is a billable or specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2025 edition of ICD-10-CM G00 became effective on October 1, 2024.

This page provides detailed information about G00 - Bacterial meningitis, not elsewhere classified. It includes common terminology, coding guidelines such as "Includes," "Excludes1," and "Excludes2" notes, and information on required 7th characters. Utilizing this information correctly is essential for accurate medical coding and claims submission for conditions like Bacterial meningitis related to not elsewhere classified.