Adenoviral meningitis

This code represents inflammation of the meninges, the membranes surrounding the brain and spinal cord, specifically caused by an adenovirus infection. It is a form of viral meningitis, characterized by symptoms such as headache, fever, stiff neck, and photophobia.

Apply this code when documentation clearly indicates a diagnosis of meningitis with laboratory confirmation or strong clinical suspicion of an adenoviral etiology. This code is appropriate when the infectious agent is identified as adenovirus.

• Ensure documentation specifies "adenoviral" meningitis; do not use for unspecified viral meningitis.
• Consider sequencing this code as the primary diagnosis if it is the reason for the encounter.
• Distinguish from other forms of viral meningitis (e.g., enteroviral, herpesviral) based on physician documentation and lab results.