CPT 75958Radiology

Xray place prox ext thor ao

CPT 75958 covers the imaging guidance (x-ray/fluoroscopy) used when a physician places an extension to the upper part of a stent graft in the thoracic aorta, the major blood vessel carrying blood from the heart through the chest.

Showing rates for

National Average

Base Medicare rate

$180.17

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

PE RVU (NF)

0.77

MP RVU

0.8

Total RVU

5.57

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

NCCI bundling edits

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Billing tips

Always bill 75958 as an add-on to the primary TEVAR procedure code (33883-33886) on the same claim
Impact: Prevents automatic denial; add-on codes cannot be billed independently and will reject without primary procedure
Document each fluoroscopic image series with timestamp, angulation, and anatomic landmarks in the operative report
Impact: Reduces audit risk and supports medical necessity; missing documentation can result in $180.17 recoupment per case
Verify that both radiological supervision and the primary procedure are performed on the same date of service
Impact: Different dates will trigger denial; coding edits require same-day service for add-on codes
Do not append modifier 51 (multiple procedures) to CPT 75958 as it is an add-on code exempt from multiple procedure reductions
Impact: Incorrect modifier use may trigger manual review delays or incorrect payment adjustments
Ensure the physician performing the radiological supervision personally documents the interpretation in the medical record
Impact: Split/shared billing not permitted for diagnostic interpretation; missing signature can result in complete denial
Bill facility and non-facility settings at the same rate ($180.17) but verify place of service code matches actual location
Impact: Incorrect POS codes trigger audits even when payment rates are identical; ensures compliance with site-of-service requirements

Common denials

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Frequently asked questions

What is the Medicare reimbursement rate for CPT 75958 in 2025?

The 2025 Medicare national average payment for CPT 75958 is $180.17 for both facility and non-facility settings. This rate is based on 5.57 total RVUs multiplied by the 2025 conversion factor of $32.3465.

Can CPT 75958 be billed alone without another procedure code?

No, CPT 75958 is an add-on code that must be billed with a primary TEVAR procedure code (typically 33883-33886). It cannot be reported independently and will be denied if submitted without the appropriate primary procedure on the same claim and date of service.

What is the RVU value for CPT code 75958?

CPT 75958 has a total RVU of 5.57, consisting of 4.0 work RVU, 0.77 practice expense RVU, and 0.8 malpractice RVU. These values are the same for both facility and non-facility settings.

Do I need modifier 26 or TC when billing CPT 75958?

Only if you are billing separately for professional or technical components. In hospital settings where the radiologist bills only for interpretation, use modifier 26. The facility would then bill with modifier TC for the technical component. If billing globally (both components), no modifier is needed.

What documentation is required to support billing CPT 75958?

Required documentation includes a written interpretation report signed by the physician, permanent stored images from the fluoroscopic guidance, documentation showing real-time imaging during proximal extension deployment, and an operative report linking the imaging to the extension placement procedure.

What procedures commonly pair with CPT 75958?

CPT 75958 is commonly billed with thoracic endovascular aortic repair codes 33883-33886 for initial or additional proximal extensions. It may also appear with diagnostic angiography codes (75600-75630) when separately identifiable pre-procedural imaging is performed.

Why was my CPT 75958 claim denied as bundled?

Common bundling denials occur when 75958 is incorrectly paired with procedure codes that already include imaging supervision, or when billed with diagnostic imaging that is not separately identifiable. Ensure you are billing with the appropriate TEVAR primary code and that documentation supports a distinct radiological supervision service for the proximal extension component specifically.