Viral encephalitis transmitted by other and unspecified arthropods

This code signifies inflammation of the brain caused by a viral infection transmitted by arthropods other than mosquitoes (e.g., ticks, mites) or when the specific arthropod vector is not identified. It represents a serious neurological condition resulting from an arboviral infection.

Use this code when documentation clearly indicates a diagnosis of viral encephalitis and specifies transmission by an arthropod other than a mosquito, or when the arthropod vector is unknown. Supporting documentation would include physician notes detailing neurological symptoms, diagnostic test results confirming viral encephalitis, and a history of exposure to arthropods.

• Differentiate from mosquito-borne viral encephalitis (062.x) and other forms of viral encephalitis where the vector is not arthropod-borne.
• Ensure documentation specifies "viral" encephalitis and an arthropod vector (other or unspecified) to support this code.
• Consider sequencing this code as the primary diagnosis when it is the reason for the encounter, followed by codes for specific neurological manifestations if applicable.