CPT 93575Cardiology

Njx cath slct p angrph mapca

CPT 93575 is used when a cardiologist performs specialized angiography (X-ray imaging with contrast dye) to visualize MAPCAs—abnormal blood vessels that develop in patients with certain congenital heart defects. This procedure involves selectively injecting contrast into these unique vessels to map their anatomy before surgical repair.

Showing rates for

National Average

Base Medicare rate

$87.66

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

1.92

PE RVU (NF)

0.66

MP RVU

0.13

Total RVU

2.71

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

NCCI bundling edits

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Billing tips

Document each MAPCA vessel separately with detailed description of origin, course, and pulmonary artery segment supplied to justify multiple units if billing for more than one vessel
Impact: Can increase reimbursement by $87.66 per additional MAPCA when properly documented as distinct vessels with modifier 59 or XU
Always bill in conjunction with appropriate base cardiac catheterization codes (93530-93533) and specify MAPCA angiography as add-on imaging to the primary catheterization procedure
Impact: Ensures full payment for complete procedure; missing base code can result in denial of the entire case
Include fluoroscopy time, contrast volume used, and specific MAPCA anatomy (vessel origin from aorta, branch distribution) in the procedure report to satisfy medical necessity requirements
Impact: Reduces denial rate by 40-60% based on audit data for congenital cardiac catheterization procedures
Verify that imaging is truly selective (catheter positioned in MAPCA origin) rather than non-selective aortography that incidentally visualizes collaterals
Impact: Non-selective imaging should be coded differently at lower reimbursement; improper coding risks $87.66 overpayment recoupment
For bilateral or multiple MAPCAs, document each vessel's selective engagement separately and consider bilateral modifier or multiple procedure guidelines based on payer policy
Impact: Proper documentation supports payment for 2-4 vessels commonly found in pulmonary atresia cases, potentially $262-$350 additional revenue
Coordinate billing with surgical team when MAPCA mapping is performed as part of staged surgical planning to ensure proper sequencing and avoid duplicate billing

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Frequently asked questions

What is the 2025 Medicare reimbursement rate for CPT code 93575?

The 2025 Medicare national average reimbursement rate for CPT 93575 is $87.66 for both facility and non-facility settings, based on 2.71 total RVUs and the 2025 conversion factor of 32.3465.

Can CPT 93575 be billed multiple times for multiple MAPCA vessels?

Yes, CPT 93575 can be billed for each separately identified MAPCA vessel that is selectively catheterized and imaged, but requires detailed documentation of each distinct vessel's origin, course, and territory with appropriate modifiers (59 or XU) appended to additional units to prevent bundling denials.

What diagnosis codes support medical necessity for CPT 93575?

Primary supporting diagnoses include Q25.5 (atresia of pulmonary artery), Q25.79 (other congenital malformations of pulmonary artery), Q21.3 (tetralogy of Fallot), and other complex cyanotic congenital heart defects where MAPCAs provide collateral pulmonary blood flow requiring pre-surgical anatomic mapping.

Is CPT 93575 an add-on code or can it be billed independently?

CPT 93575 is a standalone code, not designated as an add-on (+) code, but it is typically performed during comprehensive cardiac catheterization procedures and billed alongside base catheterization codes (93530-93533) that describe access and primary chamber/vessel studies.

What modifiers are most commonly used with CPT 93575?

The most common modifiers for 93575 are modifier 59/XU (for multiple distinct MAPCAs), modifier 26 (professional component only in facility settings), and modifier TC (technical component only), depending on the practice setting and billing arrangement.

Does CPT 93575 include the supervision and interpretation component?

Yes, CPT 93575 is a global code that includes the catheter placement, contrast injection, imaging supervision, and interpretation of the MAPCA angiography when performed by a single physician; in split billing scenarios, modifier 26 (professional) or TC (technical) should be appended.

What documentation is required to bill CPT 93575 to avoid denials?

Required documentation includes the specific congenital heart defect diagnosis, selective catheterization technique for each MAPCA, detailed anatomic description of vessel origin and course, labeled angiographic images, medical necessity justification linking to surgical planning, and clear differentiation from non-selective aortography or standard coronary/chamber angiography.