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

G00 Bacterial meningitis, not elsewhere classified

Includes bacterial arachnoiditis
bacterial leptomeningitis
bacterial meningitis
bacterial pachymeningitis
Excludes1: bacterial:
meningoencephalitis (G04.2)
meningomyelitis (G04.2)
G00.0 Hemophilus meningitis
Meningitis due to Hemophilus influenzae
G00.1 Pneumococcal meningitis
G00.2 Streptococcal meningitis
Use additional code to further identify organism (B95.0-B95.5)
G00.3 Staphylococcal meningitis
Use additional code to further identify organism (B95.6-B95.8)
G00.8 Other bacterial meningitis
Meningitis due to Escherichia coli
Meningitis due to Friedl?nder bacillus
Meningitis due to Klebsiella
Use additional code to further identify organism (B96.-)
G00.9 Bacterial meningitis, unspecified
Meningitis due to gram-negative bacteria, unspecified
Purulent meningitis NOS
Pyogenic meningitis NOS
Suppurative meningitis NOS

G01 Meningitis in bacterial diseases classified elsewhere

Code first underlying disease
Excludes1: 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)

G02 Meningitis in other infectious and parasitic diseases classified elsewhere

Code first underlying disease, such as:
poliovirus infection (A80.-)
Excludes1: