CPT® Code 92571

The filtered speech test, designated by CPT® Code 92571, is a specialized auditory assessment designed to evaluate an individual's ability to recognize speech that has been intentionally degraded or distorted. This test employs a variety of versions, with the fundamental approach utilizing a speech sample that has undergone frequency distortion. The speech sample consists of common one-syllable words, such as "hide," "home," "more," and "root," which are typically familiar to children aged 10 years and older, as well as adults. During the test, these words are processed through an electronic filter that alters their sound quality, making them more challenging to understand. The patient wears earphones through which the filtered words are presented, and they are instructed to repeat the distorted words they hear. A person with normal auditory processing capabilities is expected to recognize at least 70% of the filtered words correctly. In contrast, individuals with auditory processing disorders, particularly those affecting the thalamo-cortical neural pathways and the auditory cortex, often struggle to achieve this recognition threshold. After the completion of the test, the results are meticulously documented, and a written interpretation of the findings is generated to provide insights into the patient's auditory processing abilities.