CPT 75600Radiology

Contrast exam thoracic aorta

CPT code 75600 is used when a radiologist performs an imaging study of the thoracic aorta (the large blood vessel in the chest) using contrast material to make blood vessels visible on X-ray images.

Showing rates for

National Average

Base Medicare rate

$168.20

This calculator gives a typical-case estimate using standard Medicare modifier rules. Actual payment depends on payer policies, documentation, code-specific CMS status indicators, and locality. Verify before billing.

RVU breakdown

Work RVU

0.49

PE RVU (NF)

4.63

MP RVU

0.08

Total RVU

5.2

Conversion factor: 32.3465 · Source: CMS MPFS RVU25A · Confidence: High

NCCI bundling edits

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Billing tips

Verify contrast material documentation is explicit in the radiology report, including type, amount, and route of administration
Impact: Missing contrast documentation is the #1 reason for downcoding to non-contrast study, reducing reimbursement by approximately 40-50%
Bill global code 75600 only when your facility owns equipment and provides interpretation; split with 26/TC modifiers when services are divided
Impact: Incorrect global billing when only providing interpretation can result in overpayment recovery of approximately $80-100 per claim
Ensure medical necessity documentation clearly links to ICD-10 codes supporting aortic imaging (suspected dissection, aneurysm surveillance, etc.)
Impact: Weak medical necessity justification leads to denial in 15-20% of claims; proper documentation maintains the full $168.20 payment
Do not unbundle 75600 with more comprehensive vascular studies like CT angiography (71275) performed on the same anatomic area and date
Impact: Unbundling violations trigger automatic denials and potential audit flags; can result in recoupment of full payment plus penalties
When performed during cardiac catheterization, verify 75600 is separately billable and not included in the catheterization bundled payment
Impact: Improper billing during cath procedures results in denial; understanding NCCI edits prevents claim rejection and appeal costs
For facility billing, ensure charge capture includes all contrast media used as these are separately reimbursable supplies
Impact: Proper supply billing can add $50-150 in additional facility revenue per procedure beyond the 75600 technical component

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Frequently asked questions

What is the Medicare reimbursement rate for CPT 75600 in 2025?

The 2025 Medicare national average payment for CPT 75600 is $168.20 for both facility and non-facility settings. This rate is based on 5.2 total RVUs multiplied by the 2025 conversion factor of $32.3465.

How many RVUs is CPT code 75600 worth?

CPT 75600 has a total of 5.2 RVUs for 2025, consisting of 0.49 work RVUs, 4.63 practice expense RVUs, and 0.08 malpractice RVUs. The PE RVU is the same for both facility and non-facility settings.

Can CPT 75600 be billed with a cardiac catheterization code?

Generally, CPT 75600 is bundled into comprehensive cardiac catheterization codes and cannot be separately billed when performed as part of the same procedure. Review NCCI edits and payer-specific policies, as separate billing may be allowed only when imaging is performed in a completely separate session for a distinct indication.

What is the difference between CPT 75600 and 71275?

CPT 75600 is a conventional contrast radiography/fluoroscopy of the thoracic aorta, while 71275 is a CT angiography of the chest including the thoracic aorta. CTA (71275) is cross-sectional imaging with higher reimbursement and more comprehensive visualization, whereas 75600 is projection radiography typically performed during catheterization or as a standalone fluoroscopic study.

Do I need modifier 26 or TC when billing CPT 75600?

Use modifier 26 when billing only the professional component (physician interpretation). Use modifier TC when billing only the technical component (equipment and staff). Bill 75600 without modifiers (global) only when the same entity provides both the equipment/technical service and the physician interpretation.

What diagnosis codes support medical necessity for CPT 75600?

Common supporting ICD-10 codes include I71.2 (thoracic aortic aneurysm), I71.01 (thoracic aortic dissection), Q25.3 (aortic coarctation), R07.9 (chest pain), and I77.6 (arteritis). The diagnosis must clearly justify the need for thoracic aortic imaging rather than alternative studies.

Is contrast material separately billable when performing CPT 75600?

For hospital facility billing, contrast material can be separately billed using HCPCS codes for the specific contrast agent used. For physician office billing, the practice expense RVU includes typical contrast costs, so separate billing is generally not appropriate. Always verify payer-specific policies on contrast billing.