CPT® Code 92585

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Auditory evoked potentials for evoked response audiometry and/or testing of the central nervous system is a specialized procedure aimed at evaluating auditory function and diagnosing potential neurological conditions. This comprehensive examination, denoted by CPT® Code 92585, is particularly useful in assessing hearing loss and identifying specific conditions such as acoustic neuroma or vestibular schwannoma. The procedure involves a detailed auditory evoked response (AER) examination, which encompasses the measurement of brainstem responses alongside middle latency and late cortical responses. During the test, auditory stimuli, typically in the form of clicks, are delivered through an acoustic transducer using earphones or headphones. The resulting electrical activity in the auditory pathways is captured by surface electrodes strategically placed on the patient's forehead and earlobes, or alternatively, on the forehead, nape of the neck, and either the shoulder or cheek. The elicited waveforms are averaged over time and charted, resembling an electroencephalogram (EEG) recording. The final results are interpreted by a qualified professional, and a comprehensive written report detailing the findings is generated for further clinical evaluation.