Other specified viral meningitis

This code signifies inflammation of the meninges (membranes surrounding the brain and spinal cord) caused by a viral infection, where the specific viral etiology is known but not explicitly listed in other more specific ICD-9-CM codes for viral meningitis. It represents a diagnosis of viral meningitis due to a documented virus that doesn't have its own unique code.

Use this code when the medical record clearly documents a diagnosis of viral meningitis and identifies the causative virus, but that specific virus is not classified under other, more precise viral meningitis codes (e.g., enteroviral, mumps, herpes). Documentation should explicitly state "viral meningitis due to [specific virus not otherwise specified]" or similar.

• Ensure the documentation specifies "viral meningitis" and identifies a specific virus not covered by more granular codes.
• Avoid using this code if the viral etiology is unknown or suspected but not confirmed; in such cases, consider codes for unspecified viral meningitis.
• Do not use this code for bacterial, fungal, or other non-viral forms of meningitis.