CPT code 75600: Thoracic aortography, without serialography2026 Medicare rate & RVUs

Medicare pays $177.36 for 75600 nationally in the office. Local office rates run $153.58–$247.71.

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

What 75600 covers

This service covers contrast imaging of the thoracic aorta and the physician’s radiological supervision and interpretation. It may be performed in a hospital angiography suite or an outpatient catheterization setting to evaluate the aorta’s anatomy or suspected disease, such as an aneurysm or dissection. The defining distinction from the related serial-imaging code is that this examination is performed without serialography. A radiologist or another qualified physician interprets the images.

Choose the code based on the imaging performed, not simply the suspected diagnosis. The report should identify the thoracic aortic coverage, describe the contrast examination and findings, and support that serial imaging was not performed. Report modifier 26 for the professional interpretation or TC for the technical service; reporting without either modifier represents the global service. When multiple cardiovascular diagnostic procedures are reported, the multiple-procedure reduction applies to this code’s technical component. Catheter placement is distinct from the imaging interpretation and may be separately reported when appropriate.

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 75600 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

75600 rates by state

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

How the 75600 rate is calculated

Each of 75600’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 75600

The CMS indicators that decide how 75600 is paid alongside other services.

What modifiers do to the payment

When to use modifier 26

75600 compared with similar codes

How to choose

75605Thoracic aortographySerial image acquisition

Both concern thoracic aortic contrast imaging. Choose 75600 for an examination without serialography and 75605 when serial radiographic imaging is performed.

75625Abdominal aortographyAbdominal aorta only

75625 describes contrast imaging of the abdominal aorta; 75600 is for the thoracic aorta.

75630AortographyWith bilateral iliofemoral runoff

75630 covers abdominal aortic imaging that includes lower-extremity arterial runoff, not a thoracic-only aortogram.

75635CTA runoffAbdominal aorta and both legs

75635 is CT angiography of abdominal arteries. Code 75600 describes contrast aortography of the thoracic aorta.

Codes related to 75600

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