Billing code 92270: Electro-oculographyMedicare rate & RVUs in Oregon
Electro-oculography measures light-related changes in the eye’s standing electrical potential to assess retinal pigment epithelium function, including in suspected Best disease.
Medicare pays $125.23–$137.02 for 92270 in the office in Oregon, from Rest Of Oregon to Portland. 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.
On this page 9 sections
What 92270 covers
Electro-oculography records changes in the standing electrical potential between the front and back of the eye as lighting conditions change. An ophthalmic technician typically performs the test in an outpatient eye-care setting, while an ophthalmologist, often a retinal specialist or neuro-ophthalmologist, interprets the findings. It can help assess retinal pigment epithelium function in inherited retinal disorders such as Best vitelliform macular dystrophy.
Report 92270 for the bilateral test with interpretation and report. The record should support the clinical reason for testing and include the test findings and physician interpretation. The code is priced as bilateral, so modifier 50 does not increase payment. When billing the professional or technical portion separately, use modifier 26 for interpretation or modifier TC for equipment and staff; billing without either modifier represents the global service. When multiple ophthalmic diagnostic procedures are performed, the multiple-procedure reduction applies to the technical component.
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 92270 pays more and less in Oregon
| Payment locality | Office | Facility |
|---|---|---|
| Portland | $137.02 | Unavailable |
| Rest Of Oregon | $125.23 | Unavailable |
How the 92270 rate is calculated
Each of 92270’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 · 92270
RVUs × geographic indexes × conversion factor
Swap in your local Medicare rate.
Work 0.79Practice expense 2.95Malpractice 0.03
All indexes start at 1.000 (the national rate). Enter a ZIP or drag a slider.
Payment rules and modifiers for 92270
The CMS indicators that decide how 92270 is paid alongside other services.
CMS payment indicators · 92270
Electro-oculography
| Rule | CMS value | What it means |
|---|---|---|
| Global period | XXX | The global surgery concept doesn’t apply. |
| Multiple procedures | 7 | Diagnostic ophthalmology reduction applies to the technical component. |
| 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 | 1 | Diagnostic test with separate professional (26) and technical (TC) components. |
What modifiers do to the payment
Modifier 26 · payment effect
With and without the modifier
92270 without 26 · national office
$125.92
Electro-oculography
92270-26 · Professional component
$42.09
Pays only the interpretation and report.
92270 compared with similar codes
Compare codes
92270 vs 92273 vs 92274 vs 92265: national Medicare rates
Swap in your local Medicare rate.
How to choose
- 92273Full-field ERG
- Choose 92270 for changes in the eye’s standing potential associated with retinal pigment epithelium function. Choose 92273 for full-field retinal electrical response testing.
- 92274Multifocal ERG
- 92274 evaluates localized retinal responses with multifocal electroretinography; 92270 measures the standing potential as lighting conditions change.
- 92265Ocular muscle EMG
- 92265 is needle testing of ocular muscle electrical activity. 92270 is a non-needle electro-oculography study used to assess the standing potential and retinal pigment epithelium function.
92270 billing questions
When should 92270 be selected instead of an electroretinography code?
Use 92270 when the diagnostic question concerns the eye’s standing potential and retinal pigment epithelium function. Full-field and multifocal electroretinography codes assess retinal electrical responses using different test methods.
Does 92270 include testing of both eyes?
Yes. CMS prices this code as bilateral, and modifier 50 does not increase payment.
Can the professional and technical portions be billed separately?
Yes. Report modifier 26 for the interpretation and report, or modifier TC for the equipment and staff. Without either modifier, the claim represents the global service.
How does the multiple-procedure reduction affect 92270?
When multiple ophthalmic diagnostic procedures are performed, the reduction applies to the technical component of 92270.
What documentation supports reporting 92270?
Document the clinical reason for evaluating retinal pigment epithelium function, the test findings, and the interpreting physician’s report. A suspected inherited retinal disorder such as Best disease is one example of a relevant diagnostic context.
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
Show the CMS file lines behind this rate
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