
Includes
- Arachnoiditis NOS
- Leptomeningitis NOS
- Meningitis NOS
- Pachymeningitis NOS

Excludes
- Meningoencephalitis (G04.-)
- Meningomyelitis (G04.-)
- G03
- G03.0
- G03.1
- G03.2
- G03.8
- G03.9
| Meningitis due to other and unspecified causes |
| Nonpyogenic meningitis |
| Chronic meningitis |
| Benign recurrent meningitis [Mollaret] |
| Meningitis due to other specified causes |
| Meningitis, unspecified |