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Auditory evoked potentials (AEP) are physiological responses that can be measured in response to auditory stimuli, such as acoustic pulses, brief tones, or short bursts of broadband clicks. These responses are essentially voltage fluctuations that arise from brain activity following the presentation of sound stimuli. The primary purpose of AEP testing is to evaluate auditory neurological function and to assess the presence and extent of hearing loss. Specifically, the procedure coded as CPT® 92652 involves threshold estimation at multiple frequencies, which is particularly useful for conducting comprehensive follow-up electrophysiologic assessments of behavioral hearing thresholds in individuals who have previously been diagnosed with hearing loss. This testing quantifies both the type and severity of the hearing impairment. For infants under 6 months of age, AEP testing can be performed while the child is asleep, ensuring a controlled environment for accurate measurement. In contrast, for patients aged between 6 months and 7 years, the procedure may require the use of anesthesia to facilitate accurate testing. During the procedure, frequency-specific sound stimuli are delivered to one ear through earphones or headphones at a moderate intensity. The auditory brainstem response (ABR) is then recorded using surface electrodes, which are typically positioned on the forehead (vertex of the scalp) and earlobes, or alternatively on the forehead, nape of the neck (inverting), and either the shoulder or cheek. If a response is not detected at the initial moderate stimulus level, the intensity is increased until a response is observed. Conversely, if a response is readily identifiable and can be replicated, the stimulus intensity is decreased to find the lowest level at which a response can still be detected. This process continues until the response threshold is established for each frequency tested. Additionally, testing may incorporate bone conduction stimulation to further evaluate the magnitude of hearing loss. Throughout the procedure, the provider assesses the presence or absence of responses and the quality of the recordings. Finally, the results are interpreted, and a comprehensive written report detailing the findings, impressions, and recommendations is generated for further clinical use.
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The procedure coded as CPT® 92652 is indicated for the following conditions:
The procedure for CPT® 92652 involves several key steps to ensure accurate threshold estimation of auditory responses:
After the completion of the AEP testing, the patient may be monitored briefly to ensure there are no immediate adverse effects, especially if anesthesia was used. The results of the auditory evoked potentials are compiled into a comprehensive report that includes interpretations of the findings and any recommendations for further evaluation or treatment. The report is essential for guiding subsequent clinical decisions regarding the management of hearing loss or other auditory disorders. Patients and their families may receive counseling based on the results, and follow-up appointments may be scheduled to discuss the findings in detail and to plan any necessary interventions.
| Short Descr | AEP THRSHLD EST MLT FREQ I&R | Medium Descr | AEP THRESHOLD ESTIMATION MLT FREQUENCIES I&R | Long Descr | Auditory evoked potentials; for threshold estimation at multiple frequencies, with interpretation and report | Status Code | Active Code | Global Days | XXX - Global Concept Does Not Apply | PC/TC Indicator (26, TC) | 0 - Physician Service Code | Multiple Procedures (51) | 0 - No payment adjustment rules for multiple procedures apply. | Bilateral Surgery (50) | 2 - 150% payment adjustment does NOT apply. | Physician Supervisions | 02 - Procedure must be performed under the direct supervision of a physician. | Assistant Surgeon (80, 82) | 0 - Payment restriction for assistants at surgery applies to this procedure... | Co-Surgeons (62) | 0 - Co-surgeons not permitted for this procedure. | Team Surgery (66) | 0 - Team surgeons not permitted for this procedure. | Diagnostic Imaging Family | 99 - Concept Does Not Apply | APC Status Indicator | Procedure or Service, Not Discounted when Multiple | Berenson-Eggers TOS (BETOS) | none | MUE | 1 |
| 59 | Distinct procedural service: under certain circumstances, it may be necessary to indicate that a procedure or service was distinct or independent from other non-e/m services performed on the same day. modifier 59 is used to identify procedures/services, other than e/m services, that are not normally reported together, but are appropriate under the circumstances. documentation must support a different session, different procedure or surgery, different site or organ system, separate incision/excision, separate lesion, or separate injury (or area of injury in extensive injuries) not ordinarily encountered or performed on the same day by the same individual. however, when another already established modifier is appropriate it should be used rather than modifier 59. only if no more descriptive modifier is available, and the use of modifier 59 best explains the circumstances, should modifier 59 be used. note: modifier 59 should not be appended to an e/m service. to report a separate and distinct e/m service with a non-e/m service performed on the same date, see modifier 25. | GA | Waiver of liability statement issued as required by payer policy, individual case | AB | Audiology service furnished personally by an audiologist without a physician/npp order for non-acute hearing assessment unrelated to disequilibrium, or hearing aids, or examinations for the purpose of prescribing, fitting, or changing hearing aids; service may be performed once every 12 months, per beneficiary | 22 | Increased procedural services: when the work required to provide a service is substantially greater than typically required, it may be identified by adding modifier 22 to the usual procedure code. documentation must support the substantial additional work and the reason for the additional work (ie, increased intensity, time, technical difficulty of procedure, severity of patient's condition, physical and mental effort required). note: this modifier should not be appended to an e/m service. | 51 | Multiple procedures: when multiple procedures, other than e/m services, physical medicine and rehabilitation services or provision of supplies (eg, vaccines), are performed at the same session by the same individual, the primary procedure or service may be reported as listed. the additional procedure(s) or service(s) may be identified by appending modifier 51 to the additional procedure or service code(s). note: this modifier should not be appended to designated "add-on" codes (see appendix d). | 52 | Reduced services: under certain circumstances a service or procedure is partially reduced or eliminated at the discretion of the physician or other qualified health care professional. under these circumstances the service provided can be identified by its usual procedure number and the addition of modifier 52, signifying that the service is reduced. this provides a means of reporting reduced services without disturbing the identification of the basic service. note: for hospital outpatient reporting of a previously scheduled procedure/service that is partially reduced or cancelled as a result of extenuating circumstances or those that threaten the well-being of the patient prior to or after administration of anesthesia, see modifiers 73 and 74 (see modifiers approved for asc hospital outpatient use). | 58 | Staged or related procedure or service by the same physician or other qualified health care professional during the postoperative period: it may be necessary to indicate that the performance of a procedure or service during the postoperative period was: (a) planned or anticipated (staged); (b) more extensive than the original procedure; or (c) for therapy following a surgical procedure. this circumstance may be reported by adding modifier 58 to the staged or related procedure. note: for treatment of a problem that requires a return to the operating/procedure room (eg, unanticipated clinical condition), see modifier 78. | 77 | Repeat procedure by another physician or other qualified health care professional: it may be necessary to indicate that a basic procedure or service was repeated by another physician or other qualified health care professional subsequent to the original procedure or service. this circumstance may be reported by adding modifier 77 to the repeated procedure or service. note: this modifier should not be appended to an e/m service. | 79 | Unrelated procedure or service by the same physician or other qualified health care professional during the postoperative period: the individual may need to indicate that the performance of a procedure or service during the postoperative period was unrelated to the original procedure. this circumstance may be reported by using modifier 79. (for repeat procedures on the same day, see modifier 76.) | GW | Service not related to the hospice patient's terminal condition | GZ | Item or service expected to be denied as not reasonable and necessary | LT | Left side (used to identify procedures performed on the left side of the body) | RT | Right side (used to identify procedures performed on the right side of the body) | XS | Separate structure, a service that is distinct because it was performed on a separate organ/structure | XU | Unusual non-overlapping service, the use of a service that is distinct because it does not overlap usual components of the main service |
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| 2021-01-01 | Added | Code added. |
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