Other specified non-arthropod-borne viral diseases of central nervous system

This code signifies a viral infection affecting the central nervous system (CNS) that is not transmitted by arthropods (like mosquitoes or ticks) and is not classified elsewhere. It covers a range of viral encephalitides, meningitides, or myelitides where the specific viral agent is known but lacks a more precise ICD-9-CM code.

Use this code when documentation clearly indicates a non-arthropod-borne viral CNS infection, and a more specific viral etiology code (e.g., herpes simplex, enterovirus) is unavailable or does not fully describe the condition. This code is appropriate for conditions like certain types of viral meningitis or encephalitis where the causative virus is identified but falls outside other specific categories.

• Ensure the documentation explicitly states "non-arthropod-borne" and identifies a viral etiology affecting the CNS.
• Always search for a more specific viral CNS infection code first before resorting to this "other specified" category.
• Do not use for bacterial, fungal, or parasitic CNS infections, or for viral infections where the CNS involvement is secondary or not the primary focus.