CPT code 92274: Multifocal ERG, interpretation and report2026 Medicare rate & RVUs

Medicare pays $92.19 for 92274 nationally in the office. Local office rates run $81.74–$125.79.

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

What 92274 covers

Multifocal electroretinography (mfERG) records electrical responses from multiple retinal locations in response to a patterned visual stimulus. An ophthalmologist, often a retina specialist, may use the test to evaluate unexplained central visual symptoms, suspected localized retinal dysfunction, or possible toxic maculopathy. Ophthalmic testing staff typically obtain the responses, which the physician interprets and reports in settings such as an eye clinic or hospital outpatient department.

Choose mfERG when the clinical question concerns localized retinal function; full-field ERG (92273) assesses a broader retinal response. Documentation should identify the reason for testing and include the test findings and interpretation. The code represents the bilateral service, so modifier 50 does not increase payment. The service may be billed globally or split into the professional interpretation with modifier 26 and the technical equipment and staff with modifier TC. The ophthalmology diagnostic 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 92274 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

92274 rates by state

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

How the 92274 rate is calculated

Each of 92274’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 92274

The CMS indicators that decide how 92274 is paid alongside other services.

What modifiers do to the payment

When to use modifier 26

92274 compared with similar codes

How to choose

92273Full-field ERGWith interpretation and report

92274 maps localized retinal responses with multifocal stimulation; 92273 measures the broader full-field retinal response.

92270Electro-oculographyWith interpretation and report

92270 is electro-oculography, a different electrical test used to assess retinal pigment epithelium function; 92274 records localized retinal responses.

92284Dark adaptationDiagnostic examination

92284 evaluates dark adaptation, whereas 92274 records electrical responses across multiple retinal locations.

Codes related to 92274

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