Other tick-borne viral encephalitis
ICD-10 A84.89 is a billable code used to indicate a diagnosis of other tick-borne viral encephalitis.
Other tick-borne viral encephalitis refers to a group of viral infections that affect the central nervous system (CNS) and are transmitted through tick bites. These infections can lead to severe neurological complications, including encephalitis, which is characterized by inflammation of the brain. Symptoms may include fever, headache, confusion, seizures, and neurological deficits. The condition is often associated with specific viruses such as the Powassan virus and other less common tick-borne viruses. Diagnosis typically involves clinical evaluation, serological testing, and sometimes lumbar puncture to analyze cerebrospinal fluid (CSF). Vaccination status is crucial, as vaccines are available for some tick-borne viruses, such as the Japanese encephalitis virus, but not for all. Understanding the patient's vaccination history can aid in diagnosis and management. Treatment is primarily supportive, focusing on alleviating symptoms and managing complications. Given the potential for severe outcomes, timely recognition and appropriate coding of this condition are essential for effective patient management and reimbursement.
Detailed history of exposure to ticks, vaccination status, and clinical symptoms.
Patients presenting with fever and neurological symptoms after a tick bite.
Consideration of co-infections and the need for serological testing.
Neurological examination findings, imaging results, and CSF analysis.
Patients with acute encephalitis symptoms requiring neurological evaluation.
Documentation of neurological deficits and their progression.
Used when testing for specific tick-borne viruses.
Document the reason for testing and clinical symptoms.
Infectious disease specialists should ensure comprehensive testing.
Common symptoms include fever, headache, confusion, seizures, and neurological deficits. Symptoms can vary based on the specific virus involved.
