This page includes coding, billing, and coverage guidance for middle ear measures including tympanometry, acoustic reflex (middle ear muscle reflex) threshold testing, and acoustic reflex decay testing.
Clinicians are strongly encouraged to reference payer-specific policies when determining appropriate code reporting and documentation requirements for services. Further, Medicare local coverage determinations and other payer policies will address which ICD codes support medical necessity and subsequent reimbursement for services. It is advisable to review payer guidelines and policies prior to billing.
The following Level I HCPCS CPT codes are available for reporting middle ear measures.
Relevant Procedure Codes
| CPT Code | Description |
| 92550 | Tympanometry and reflex threshold measures *(CPT Manual Instructions: Do not report in conjunction with 92567 or 92568) |
| 92567 | Tympanometry (impedance testing) |
| 92568 | Acoustic reflex testing, threshold, ipsi + contra |
| 92570 | Acoustic immittance testing, includes tympanometry (impedance testing), acoustic reflex threshold testing, and acoustic reflex decay testing *(CPT Manual Instructions: Do not report in conjunction with 92567 or 92568) |
| *Note: The CPT manual parentheticals presented here do not include Medicare’s National Correct Coding Initiative (NCCI) procedure-to-procedure edits. The full list of NCCI edits and other information related to same-day billing can be found here. | |
Modifiers and FAQ
The -52 modifier (reduced services) is utilized for each middle ear CPT code for the conditions listed below.
Need more help?
Contact us at reimbursement@audiology.org.
*CPT codes, descriptions, and other data are Copyright 1966, 1970, 1973, 1977, 1981, 1983–2025 American Medical Association. All rights reserved. CPT© is a registered trademark of the American Medical Association.
Disclaimer:
The purpose of the information provided by the American Academy of Audiology Coding and Reimbursement Committee is strictly for educational guidance to audiologists. Action taken with respect to the information provided is an individual choice. The American Academy of Audiology hereby disclaims any responsibility for the consequences of any action(s) taken by any individual(s) as a result of using the information provided, and reader agrees not to take action against, or seek to hold, or hold liable, the American Academy of Audiology for the reader’s use of the information provided. As used herein, the “American Academy of Audiology” shall be defined to include its directors, officers, employees, volunteers, members, and agents.
