CPT Code 92588 | Description & Clinical Information

CPT 92588 describes a diagnostic test that is noninvasive and helps the provider to detect inner ear abnormalities, which can aid in identifying conditions such as functional hearing loss or distinguishing between sensory and neural hearing impairment.

Official Description

The CPT book defines CPT code 92588 as: “Distortion product evoked otoacoustic emissions; comprehensive diagnostic evaluation (quantitative analysis of outer hair cell function by cochlear mapping, minimum of 12 frequencies), with interpretation and report”.

Billing Guidelines

To evaluate central auditory function, refer to CPT codes 92620 and 92621.

Clinical Information

The procedure described by CPT code 92588 involves the use of a computer and an ear probe tip to evaluate a patient’s hearing status. During the test, the provider inserts the ear probe tip into the patient’s ear canal, where it emits either a distortion product or a transient sound. These sounds pass through the ear’s various structures, including the tympanic membrane, the middle ear, and the inner ear.

Once the sound reaches the hair cells of the cochlea in the inner ear, the computer records the echo off the cochlear hair cells. This technique is known as quantitative analysis of outer hair cell function by cochlear mapping. The provider repeats the test at different intensity levels and for at least twelve ranges of frequencies.

During the test, the computer records the results, which the provider then compares to normative data. Once the results are interpreted, the provider prepares a report. The primary goal of this test is to assess the presence or absence of a hearing disorder.

This procedure is highly efficient and accurate in diagnosing hearing related issues. It is a non-invasive method that is performed within a short duration of time. The test is usually performed by an audiologist, a specialist trained in identifying, diagnosing, and treating hearing disorders.

It is crucial to note that this procedure has been refined over many years and has undergone several significant changes to ensure a higher level of accuracy. The results obtained from this test can be compared to extensive databases to ensure a comprehensive analysis of the patient’s hearing status.

In conclusion, the CPT code 92588 procedure is a reliable and effective method for diagnosing hearing disorders. It is a non-invasive test that can evaluate hearing status within a short duration of time. By utilizing the latest technology, it provides an accurate analysis of the patient’s hearing ability, allowing for appropriate treatment to be administered. If you suspect you have a hearing problem, it is advisable to schedule an appointment with an audiologist who can perform this test and provide you with the appropriate recommendations.

Return to all the CPT codes for audiologic function tests.

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