CPT code 92570: Immittance testing, tympanometry and reflex measures2026 Medicare rate & RVUs in Missouri
Reports a comprehensive middle-ear test battery combining tympanometry with acoustic reflex measurements when evaluating hearing or middle-ear disorders.
Medicare pays $29.64–$30.79 for 92570 in the office in Missouri, from Rest of Missouri to Metropolitan St. Louis, MO. Which amount applies depends on the service address.
Medicare allowed amount for participating (non-QP) physicians, before deductible, coinsurance and claim adjustments. Not a patient’s bill or a hospital charge.
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On this page 9 sections
What 92570 covers
An audiologist or other qualified hearing professional uses acoustic immittance testing to assess eardrum and middle-ear mobility and measure acoustic reflex responses. The battery includes tympanometry, reflex threshold testing, and reflex decay testing. It is commonly performed in audiology and otolaryngology settings when evaluating conductive hearing loss, middle-ear fluid or pressure problems, or other abnormal hearing findings.
Report 92570 when the documented service includes the comprehensive immittance battery, rather than only one of its component test types. Retain the test results and clinical rationale showing which measurements were performed. CMS treats this as a service without a separately billable professional component, so modifier 26 does not apply. The code is priced as bilateral; modifier 50 does not increase payment.
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 92570 pays more and less in Missouri
The same RVUs, adjusted for each area’s costs. Open a locality for its calculation, history and nearby areas.
3 payment localities
$29.64 to $30.79
| Payment locality | Office | Facility |
|---|---|---|
| Metropolitan Kansas City, MO | $30.61 | $23.40 |
| Metropolitan St. Louis, MO | $30.79 | $23.47 |
| Rest of Missouri | $29.64 | $23.01 |
How the 92570 rate is calculated
Each of 92570’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.
How the rate is built · 92570
RVUs × geographic indexes × conversion factor
Work0.55
0.55 RVUs× 1.000 GPCI
Practice expense0.38
0.38 RVUs× 1.000 GPCI
Malpractice0.01
0.01 RVUs× 1.000 GPCI
Adjusted RVUs
0.9400
Conversion factor
$33.4009
Medicare rate
$31.40
Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.
Payment rules and modifiers for 92570
The CMS indicators that decide how 92570 is paid alongside other services.
CMS payment indicators · 92570
Immittance testing, tympanometry and reflex measures
| Rule | CMS value | What it means |
|---|---|---|
| Global period | XXX | The global surgery concept doesn’t apply. |
| Multiple procedures | 0 | No multiple-procedure reduction. |
| Bilateral (modifier 50) | 2 | Already bilateral by definition: paid once at 100%. |
| Assistant at surgery (80/81/82/AS) | 0 | Not paid without supporting documentation. |
| Co-surgeons (62) | 0 | Not permitted. |
| Team surgery (66) | 0 | Not permitted. |
| Professional/technical | 7 | Therapy service: the split doesn’t apply. |
What modifiers do to the payment
Modifier CQ · payment effect
With and without the modifier
92570 without CQ · national office
$31.40
Immittance testing, tympanometry and reflex measures
92570-CQ · Allowed amount unchanged
$31.40
Medicare cuts its own payment by 15% after the patient’s 20% coinsurance; the allowed amount stays the same. On $100 allowed: $20 coinsurance, then Medicare pays $68 instead of $80.
92570 compared with similar codes
Compare codes · National
4 codes, side by side
How to choose
- 92550Middle-ear testingTympanometry and reflex thresholds
- 92550 combines tympanometry and acoustic reflex threshold measurements. Choose 92570 when the service also includes the broader reflex assessment, including decay testing.
- 92567TympanometryMiddle ear pressure and mobility
- 92567 is limited to tympanometry. It does not represent the full set of acoustic reflex measurements included in 92570.
- 92568Acoustic reflexThreshold measurement
- 92568 reports acoustic reflex threshold testing alone; 92570 represents the broader immittance battery, not just the threshold measurement.
92570 billing questions
When should 92570 be selected instead of 92567?
Use 92570 for the comprehensive immittance battery, including tympanometry and acoustic reflex measurements. Use 92567 when the service is tympanometry alone.
How does 92570 differ from 92550?
92570 represents the broader battery, including reflex decay testing. 92550 covers tympanometry with acoustic reflex threshold measurements.
Can the component measurements also be billed separately?
The measurements are included in the comprehensive service represented by 92570. Do not separately report a component test for work already included in the battery.
Should modifier 50 be appended for testing both ears?
No. CMS prices 92570 as bilateral, and modifier 50 does not increase payment.
Can modifier 26 be used for the interpretation?
No. CMS identifies this as a service for which the professional component modifier does not apply.
What documentation supports reporting 92570?
Document the clinical reason for testing and the tympanometry and acoustic reflex measurements performed, with the resulting findings.
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
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