CPT code 92550: Middle-ear testing, tympanometry and reflex thresholds2026 Medicare rate & RVUs

Medicare pays $21.71 for 92550 nationally in the office. Local office rates run $20.18–$28.04.

Medicare allowed amount for participating (non-QP) physicians, before deductible, coinsurance and claim adjustments. Not a patient’s bill or a hospital charge.

What 92550 covers

This service combines tympanometry, which measures middle-ear response to changes in ear-canal pressure, with acoustic reflex threshold testing, which checks the sound level that elicits a middle-ear muscle reflex. Audiologists commonly perform it in an audiology clinic or ENT practice when assessing hearing loss, abnormal middle-ear findings, or suspected eustachian tube or middle-ear dysfunction. Results help characterize middle-ear function alongside other hearing test findings.

Report 92550 when both tympanometry and reflex threshold measurements are performed; use a single-component code when only one of those tests is done. The record should identify the clinical reason for testing and include the findings for the measures performed. CMS prices this code as bilateral, so modifier 50 does not increase payment. The professional component modifier does not apply; do not split the service into professional and technical claims using modifier 26.

This summary was written with AI assistance from CMS physician fee schedule data and checked against the CMS billing rules shown here. Rates on this page come directly from CMS files.

Where 92550 pays more and less

The same RVUs, adjusted for each area’s costs. Open a locality for its calculation, history and nearby areas.

109 of 109 payment localities

92550 rates by state

Office rate range in each state. Select a state to see its payment localities.

How the 92550 rate is calculated

Each of 92550’s three RVUs is multiplied by a geographic index (GPCI) for the payment locality, added up, and multiplied by the conversion factor. Drag the indexes or enter a ZIP to see what moves the rate.

Payment rules and modifiers for 92550

The CMS indicators that decide how 92550 is paid alongside other services.

What modifiers do to the payment

92550 compared with similar codes

How to choose

92567TympanometryMiddle ear pressure and mobility

92567 reports tympanometry alone. Choose 92550 when acoustic reflex threshold testing is also performed.

92568Acoustic reflexThreshold measurement

92568 reports acoustic reflex threshold testing alone; 92550 combines that testing with tympanometry.

92557Comprehensive hearing testAir, bone, and speech testing

92557 covers comprehensive hearing testing, including air- and bone-conduction and speech audiometry. It does not replace 92550 when both middle-ear measures are performed.

Codes related to 92550

Related codes aren’t interchangeable: bill the code that matches the service performed.

Where these rates come from

FeeBase calculates base physician payments from CMS work, practice-expense and malpractice RVUs, adjusted by each locality’s geographic indexes and the conversion factor. Services without a published rate are labeled, never given a made-up amount. Amounts are Medicare allowed amounts before claim adjustments: not a patient’s bill or a commercial rate.

CMS RVU26D · effective Oct 1, 2026 through the day before Jan 1, 2027

Open CMS sourceHow we calculate rates