CPT code 77046: Breast MRI, unilateral, without contrast2026 Medicare rate & RVUs in Colorado

In Colorado, Medicare pays $223.44 for 77046 in the office.

Check a contract rate as a % of Medicare · 77046 nationwide

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

What 77046 covers

This code covers MRI imaging of one breast performed without contrast. A common use is evaluating a breast implant for possible rupture or other integrity concerns. A technologist typically acquires the images in an outpatient imaging center or hospital, and a radiologist interprets them. The code is specific to a unilateral, noncontrast examination; it does not describe a contrast-enhanced breast MRI protocol.

Select the code when the documented examination covers one breast and uses no contrast. The order, imaging record, laterality, protocol, and radiologist’s report should support those details and the clinical indication. CMS recognizes separate professional and technical components: modifier 26 identifies the interpretation, modifier TC identifies the equipment and staff, and billing without either modifier represents the global service. The diagnostic imaging multiple procedure reduction applies to both the technical and professional components.

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.

How Colorado compares for 77046

Across 109 of 109 payment localities, the office rate for 77046 runs from $188.66 in Arkansas to $288.93 in San Benito County, CA. Colorado pays $223.44. The RVUs are the same everywhere; the geographic indexes change the dollars.

Every other payment area

77046 rates by state

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

See 77046 in every payment locality

How the 77046 rate is calculated

Each of 77046’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 77046

The CMS indicators that decide how 77046 is paid alongside other services.

What modifiers do to the payment

When to use modifier 26

Codes related to 77046

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

How 77046 has changed in Colorado

Price 77046 for an earlier date of service

Where the Colorado rate applies

Colorado is a Medicare payment area, not a city. Our Census mapping connects it to 485 cities and communities in Colorado. Some span more than one payment area; confirm with the service ZIP.

• Acres Green
• Aetna Estates
• Aguilar
• Air Force Academy
• Akron
• Alamosa
• Alamosa East
• Allenspark

Browse all communities in Colorado

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