CPT code 76377: 3D rendering, independent workstation2026 Medicare rate & RVUs

Medicare pays $78.83 for 76377 nationally in the office. Local office rates run $70.53–$103.01.

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

What 76377 covers

A radiologist or other qualified interpreting professional uses an independent workstation to create and interpret three-dimensional views from an existing CT, MRI, ultrasound, or other tomographic study. The reconstruction can clarify anatomy or show spatial relationships that are difficult to assess on the source images alone, such as vessels, bones, or a complex lesion. The service includes the interpretation and a report of the rendered images; it is distinct from simply reviewing the original image series.

Select this code when the documented 3D postprocessing requires an independent workstation and the rendering is interpreted and reported. The record should support the medical purpose of the reconstruction and identify the resulting findings. CMS recognizes professional and technical components: modifier 26 identifies the interpretation, modifier TC identifies the equipment and staff, and reporting the code without either modifier represents the global service.

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 76377 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

76377 rates by state

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

How the 76377 rate is calculated

Each of 76377’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 76377

The CMS indicators that decide how 76377 is paid alongside other services.

What modifiers do to the payment

When to use modifier 26

76377 compared with similar codes

How to choose

763763D renderingWithout independent workstation

Both report interpreted 3D rendering from tomographic images. The distinguishing factor is whether the postprocessing requires an independent workstation.

74177CT abdomen and pelvisWith contrast only

This code reports the CT examination of the abdomen and pelvis; 76377 reports the separately performed and interpreted 3D reconstruction when its criteria are met.

73721Lower extremity joint MRIWithout contrast

This code reports an MRI examination of a lower-extremity joint. It is a source imaging study, not the 3D rendering service itself.

Codes related to 76377

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