CPT 74175Radiology

Cta abdomen w/contrast

CPT code 74175 is used for a CT angiography (CTA) of the abdomen performed with contrast dye, which creates detailed images of blood vessels in the abdominal area to detect blockages, aneurysms, or other vascular abnormalities.

Showing rates for

National Average

Base Medicare rate

$301.15

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

1.82

PE RVU (NF)

7.36

MP RVU

0.13

Total RVU

9.31

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

NCCI bundling edits

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Billing tips

Ensure documentation explicitly states 'CT angiography' or 'CTA' and describes vascular protocol with arterial phase timing - generic 'CT abdomen with contrast' documentation will trigger downcoding to 74160
Impact: Prevents $60-80 downcoding loss to standard CT abdomen code; maintains full $301.15 reimbursement
Document specific vascular structures evaluated (aorta, mesenteric vessels, renal arteries) and post-processing techniques used (MPR, MIP, 3D reconstruction) to support CTA rather than standard CT
Impact: Reduces audit risk and supports medical necessity; critical for maintaining 9.31 RVU assignment
Bill 74175 as global code only when your facility owns equipment and provides interpretation; split with modifier 26/TC based on actual service components provided
Impact: Incorrect global billing when only providing professional component results in 100% overpayment recoupment plus penalties
Verify contrast administration is documented in nursing notes or radiology tech notes with type, amount, route, and timing - oral contrast alone does not support 74175
Impact: Missing IV contrast documentation triggers automatic denial; requires intravenous contrast administration
Do not bill 74175 with 74160 or 74170 on same date of service for same anatomic region - these are mutually exclusive codes
Impact: Prevents NCCI edit denial and potential fraud investigation; use modifier 59 only when truly separate sessions or anatomic areas
Pre-authorize with payers when diagnosis is screening or surveillance rather than acute symptoms - many require prior authorization for non-emergent CTAs

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Frequently asked questions

What is the Medicare reimbursement rate for CPT code 74175 in 2025?

The 2025 Medicare national average reimbursement for CPT 74175 is $301.15 for both facility and non-facility settings. This rate is based on 9.31 total RVUs (1.82 work RVU, 7.36 practice expense RVU, 0.13 malpractice RVU) multiplied by the 2025 conversion factor of 32.3465.

What is the difference between CPT 74175 and 74160?

CPT 74175 is specifically for CT angiography of the abdomen with contrast focusing on vascular structures with dedicated arterial phase imaging and post-processing, while 74160 is a standard CT abdomen with contrast for general abdominal organ evaluation. 74175 requires vascular protocol with thin slices, optimized contrast timing for arterial phase, and multiplanar/3D reconstructions. The reimbursement difference is significant, making proper documentation critical.

Can CPT 74175 be billed with modifier 26 for professional component only?

Yes, CPT 74175 can be billed with modifier 26 when the radiologist only provides interpretation services but does not own the imaging equipment. The facility that owns the equipment would bill 74175-TC for the technical component. Both components together equal the global reimbursement of $301.15.

What documentation is required to support billing CPT 74175?

Documentation must explicitly state CTA or CT angiography was performed with vascular protocol, include IV contrast administration details with arterial phase timing, describe specific vascular structures evaluated, mention post-processing techniques (MPR, MIP, 3D reconstruction), and provide clinical indication supporting vascular imaging necessity. Generic 'CT with contrast' documentation will not support 74175.

How many RVUs is CPT code 74175 worth in 2025?

CPT 74175 has 9.31 total RVUs in 2025, consisting of 1.82 work RVUs, 7.36 practice expense RVUs (both facility and non-facility), and 0.13 malpractice RVUs, based on the CMS Physician Fee Schedule RVU25A file released December 23, 2024.

Does CPT 74175 require prior authorization from Medicare or commercial payers?

Traditional Medicare does not require prior authorization for 74175, but Medicare Advantage plans and most commercial payers do require prior authorization for non-emergent CTA studies. Emergency department studies are typically exempt from prior authorization requirements. Always verify payer-specific requirements before scheduling non-emergent CTAs to avoid denials.

Can CPT 74175 and 74174 (CTA chest) be billed together on the same date?

Yes, CPT 74175 (CTA abdomen) and 74174 (CTA chest) can be billed together when both anatomic regions are medically necessary and separately imaged, though some payers may prefer the combination code 75635 for chest/abdomen/pelvis CTA when all regions are performed together. Use appropriate modifiers if required by payer policy, and ensure documentation supports medical necessity for both separate studies.