CPT® Code 92540

Basic vestibular evaluation, includes spontaneous nystagmus test with eccentric gaze fixation nystagmus, with recording, positional nystagmus test, minimum of 4 positions, with recording, optokinetic nystagmus test, bidirectional foveal and peripheral stimulation, with recording, and oscillating tracking test, with recording

A basic vestibular evaluation is a comprehensive assessment designed to investigate the presence of nystagmus, which refers to rapid, involuntary eye movements. This evaluation is crucial for diagnosing vestibular disorders that may manifest as vertigo, characterized by sensations of dizziness and balance disturbances. Patients experiencing these symptoms may struggle to maintain their balance, stand upright, or walk normally. The evaluation begins with a visual observation of the patient's eye movements, followed by a series of tests that utilize electronystagmography (ENG) for precise recording. During the evaluation, electrodes are strategically placed on the skin around the eyes to capture and analyze eye movement data. The tests included in this evaluation are specifically structured to assess various aspects of vestibular function, including spontaneous nystagmus, positional nystagmus, optokinetic nystagmus, and oscillating tracking abilities. Each component of the evaluation is designed to elicit specific responses that can help identify underlying vestibular disorders, providing essential information for further diagnosis and treatment planning.