Eastern equine encephalitis
ICD-10 A83.4 is a billable code used to indicate a diagnosis of eastern equine encephalitis.
Eastern equine encephalitis (EEE) is a rare but serious viral infection that affects the central nervous system (CNS), primarily caused by the Eastern equine encephalitis virus (EEEV), which is transmitted through mosquito bites. The disease is characterized by sudden onset of fever, headache, and neurological symptoms, which may include confusion, seizures, and coma. EEE is particularly severe in young children and older adults, with a high mortality rate among those who develop encephalitis. The virus can lead to long-term neurological complications, including cognitive deficits, motor impairments, and behavioral changes. Diagnosis is typically confirmed through serological testing or PCR analysis of cerebrospinal fluid (CSF). Vaccination against EEE is available and is recommended for individuals at high risk, such as those living in endemic areas or working in certain outdoor occupations. Prompt recognition and supportive care are crucial for improving outcomes in affected individuals.
Detailed clinical history, laboratory results, and vaccination status.
Patients presenting with fever and neurological symptoms after mosquito exposure.
Ensure laboratory confirmation is documented to support coding.
Neurological examination findings, imaging results, and treatment plans.
Patients with acute encephalitis symptoms requiring neurological evaluation.
Document any long-term neurological sequelae for accurate coding.
Used when testing for EEE in patients with encephalitis symptoms.
Document the reason for testing and any relevant clinical findings.
Infectious disease specialists should ensure comprehensive testing is performed.
Common symptoms include high fever, headache, chills, and neurological symptoms such as confusion, seizures, and coma.
Diagnosis is typically made through clinical evaluation, supported by serological testing or PCR analysis of cerebrospinal fluid.
Yes, there is a vaccine available for Eastern equine encephalitis, primarily recommended for individuals at high risk.
