CPT 75959Radiology

Xray place dist ext thor ao

CPT 75959 covers the radiological supervision and interpretation for placing a distal extension prosthesis in the thoracic aorta during endovascular repair procedures. This is the imaging component used to guide and verify proper placement of additional graft extensions in the chest portion of the main artery.

Showing rates for

National Average

Base Medicare rate

$157.53

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

3.5

PE RVU (NF)

0.7

MP RVU

0.67

Total RVU

4.87

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

NCCI bundling edits

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Billing tips

Bill 75959 as an add-on to the primary TEVAR procedure code (33883-33886) and ensure documentation clearly separates the distal extension placement from the primary endograft deployment
Impact: Ensures full $157.53 reimbursement; failure to document separately often results in bundling denials costing entire fee
Document all contrast injections, fluoroscopy time, and specific imaging projections used during distal extension placement with saved images in PACS
Impact: Reduces audit risk and supports medical necessity; inadequate imaging documentation is the #1 cause of retrospective denials for this code
Verify that the distal extension is a separate component from the primary endograft and not part of a single-unit device before billing 75959
Impact: Prevents unbundling violations; improper billing can result in recoupment of $157.53 plus potential False Claims Act exposure
When multiple distal extensions are placed, confirm payer policy on units; most payers allow only one unit of 75959 regardless of number of distal components
Impact: Prevents automatic denials for excessive units; billing multiple units without modifier support typically results in payment for one unit only
Code 75959 separately from diagnostic angiography; pre-procedure diagnostic imaging (75600-75630) may be separately billable with modifier 59 if performed on a different date or clearly distinct
Impact: Can add $100-300 in additional reimbursement when appropriately documented and separated from the interventional imaging
Ensure the supervising physician's interpretation is documented and signed within the required timeframe (typically 24-48 hours) for the professional component

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Frequently asked questions

What is the Medicare reimbursement rate for CPT code 75959 in 2025?

The 2025 Medicare national average reimbursement rate for CPT 75959 is $157.53 for both facility and non-facility settings. This rate is based on 4.87 total RVUs (3.5 work RVU, 0.7 practice expense RVU, 0.67 malpractice RVU) multiplied by the 2025 conversion factor of 32.3465.

Can CPT 75959 be billed with the primary TEVAR procedure codes?

Yes, CPT 75959 is designed to be billed as an add-on code with primary thoracic endovascular aortic repair (TEVAR) codes 33883-33886 when a distal extension prosthesis is placed. The code specifically captures the radiological supervision and interpretation for the extension placement, which is separate from the surgical procedure itself.

How many units of 75959 can be billed if multiple distal extensions are placed?

Most Medicare contractors and commercial payers allow only one unit of CPT 75959 per operative session regardless of the number of distal extension components placed. The code represents the radiological supervision for the distal extension process as a whole, not per individual component. Always verify specific payer policy before billing multiple units.

What is the difference between CPT 75959 and the primary TEVAR imaging codes?

CPT 75959 specifically covers radiological supervision for placement of distal extension prostheses beyond the primary endograft. The primary TEVAR codes (33883-33886) include imaging for the initial endograft placement, while 75959 is separately reportable only when additional distal extensions are deployed requiring separate fluoroscopic guidance and imaging interpretation.

Do I need modifier 26 when billing CPT 75959 in a hospital setting?

Typically, no. The equal facility and non-facility rates ($157.53) for CPT 75959 suggest it is usually billed globally. However, if your practice has a specific arrangement where the professional and technical components are split-billed, modifier 26 would be appropriate for the professional interpretation component only. Verify your facility's billing arrangement before applying modifiers.

What documentation is required to support billing CPT 75959?

Required documentation includes a separate radiological supervision and interpretation report signed by the physician, saved fluoroscopic images showing distal extension deployment, documentation of contrast injections, specific device identification, confirmation of proper positioning, and clear documentation that the distal extension is a separate component from the primary endograft. The report must demonstrate real-time imaging guidance throughout the extension placement.

Why was my CPT 75959 claim denied as bundled with the TEVAR procedure?

Bundling denials for 75959 typically occur when documentation does not clearly demonstrate that a separate distal extension (beyond the primary endograft) was placed, or when the radiological supervision report is missing or incomplete. To appeal, provide detailed documentation showing the distal extension as a distinct component, submit complete imaging reports, and reference CPT guidelines and NCCI edits that support separate reporting of 75959 with TEVAR codes.