CPT® Code 92517

Vestibular evoked myogenic potential (VEMP) testing is a specialized diagnostic procedure used to assess the function of the vestibular system, which is crucial for balance and spatial orientation. This testing is particularly valuable in identifying the underlying causes of dizziness or auditory symptoms that patients may experience. The technique involves the application of auditory stimuli, typically loud, repetitive sounds such as clicks or pulses, delivered to one ear at a time. In the case of cervical VEMP (CPT® Code 92517), the focus is on measuring the activation of the ipsilateral sternocleidomastoid muscle, which is monitored through electromyography (EMG). The procedure requires the patient to position their head to one side while the sound stimulus is presented, allowing for precise measurement of muscle response. The testing protocol includes varying stimulus levels and frequencies, ensuring a comprehensive evaluation of the vestibular labyrinth's saccule and the inferior branch of the vestibular nerve. The results obtained from this testing are crucial for interpreting the integrity of the vestibular system and are compiled into a detailed report for further clinical assessment.