Billing code 73702: CT scanMedicare rate & RVUs

Medicare pays $194.73 for 73702 nationally in the office. Local office rates run $171.84–$264.88.

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

What 73702 covers

This service covers CT imaging of a lower extremity, such as the foot, ankle, knee, or hip, performed first without contrast and then with contrast during the same examination. Radiologists interpret the images; technologists perform the scan in hospital imaging departments, outpatient imaging centers, and other CT-equipped settings. A combined protocol may be selected when the clinical question calls for both unenhanced and contrast-enhanced views, such as evaluating a suspected soft-tissue infection or mass.

Report this code for the combined examination rather than separately reporting the unenhanced and contrast-enhanced phases as individual CT studies. Documentation should identify the body region and support the need for both phases. The service has professional and technical components: modifier 26 identifies the interpretation, modifier TC identifies the equipment and staff portion, and billing without either modifier represents the global service. When multiple diagnostic imaging services are performed, CMS's multiple-procedure reduction applies to both components. When imaging is performed on both sides, each side is paid separately at 100%.

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 73702 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

73702 rates by state

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

How the 73702 rate is calculated

Each of 73702’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 73702

The CMS indicators that decide how 73702 is paid alongside other services.

What modifiers do to the payment

When to use modifier 26

73702 compared with similar codes

How to choose

73700Extremity CT

73700 describes lower-extremity CT performed without contrast only. Choose 73702 when the examination includes both unenhanced and contrast-enhanced imaging.

73701Extremity CT

73701 is for a contrast-only lower-extremity CT examination. Choose 73702 when unenhanced images are also obtained as part of the same study.

73706Ct angio lwr extr w/o&w/dye

73706 is CT angiography of the lower extremity, a vascular imaging study. This code describes nonangiographic CT performed with and without contrast.

73720MRI

73720 is MRI of a lower extremity without and with contrast. This code applies when the imaging modality is CT.

Codes related to 73702

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