1. G00 Bacterial meningitis, not elsewhere classified


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


    • bacterial meningoencephalitis (G04.2)
    • bacterial meningomyelitis (G04.2)
    1. G00.0 Hemophilus meningitis

      Inclusion term(s):

      • Meningitis due to Hemophilus influenzae
    2. G00.1 Pneumococcal meningitis

      Inclusion term(s):

      • Meningtitis due to Streptococcal pneumoniae
    3. G00.2 Streptococcal meningitis

    4. G00.3 Staphylococcal meningitis

    5. G00.8 Other bacterial meningitis

      Inclusion term(s):

      • Meningitis due to Escherichia coli
      • Meningitis due to Friedl√§nder's bacillus
      • Meningitis due to Klebsiella
    6. G00.9 Bacterial meningitis, unspecified

      Inclusion term(s):

      • Meningitis due to gram-negative bacteria, unspecified
      • Purulent meningitis NOS
      • Pyogenic meningitis NOS
      • Suppurative meningitis NOS
Abbreviations used here:

NEC Not elsewhere classifiable
This abbreviation in the Tabular List represents “other specified”. When a specific code is not available for a condition, the Tabular List includes an NEC entry under a code to identify the code as the “other specified” code.

NOS Not otherwise specified
This abbreviation is the equivalent of unspecified.