CPT code 74183: MRI abdomen, without and with contrast2026 Medicare rate & RVUs

Medicare pays $336.01 for 74183 nationally in the office. Local office rates run $296.92–$455.85.

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

What 74183 covers

This code describes an MRI examination of the abdomen with images acquired both before and after contrast administration. A radiologist interprets the images; the technical work uses the MRI scanner, staff, and related equipment. Common clinical questions include characterizing a liver lesion, evaluating a pancreatic or adrenal abnormality, and assessing other abdominal organ findings. The examination is performed in hospital imaging departments and freestanding diagnostic imaging centers.

Choose this code when the documented abdominal study includes both noncontrast and postcontrast imaging, rather than only one contrast approach. The order and report should support the abdominal anatomy examined, the use of contrast, and the diagnostic interpretation. CMS recognizes separate professional and technical components: modifier 26 identifies interpretation, modifier TC identifies the technical service, and billing without either modifier represents the global service. When multiple diagnostic imaging procedures are reported, the CMS multiple-procedure reduction applies to both 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.

Where 74183 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

74183 rates by state

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

How the 74183 rate is calculated

Each of 74183’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 74183

The CMS indicators that decide how 74183 is paid alongside other services.

What modifiers do to the payment

When to use modifier 26

74183 compared with similar codes

How to choose

74181Abdominal MRIWithout contrast

Use 74181 when the abdominal MRI is performed without contrast. 74183 requires both noncontrast and postcontrast imaging.

74182Abdominal MRIWith contrast only

Use 74182 for an abdominal MRI with contrast only. Choose 74183 when the documented protocol includes imaging before and after contrast.

74170Abdominal CTWithout and with contrast

74170 describes an abdominal CT without and with contrast. Use 74183 when the completed examination is MRI, not CT.

Codes related to 74183

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