CPT 93573Cardiology

Njx cath slct p-art angrp bi

CPT 93573 covers the injection and imaging procedure to visualize both the left and right pulmonary arteries using a catheter that has been precisely positioned in these vessels.

Showing rates for

National Average

Base Medicare rate

$59.19

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

1.3

PE RVU (NF)

0.45

MP RVU

0.08

Total RVU

1.83

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

NCCI bundling edits

Loading bundling edits…

Billing tips

Document selective catheter placement in both right and left pulmonary arteries with separate contrast injections and imaging for each branch
Impact: Ensures full $59.19 reimbursement versus $44.52 for unilateral code 93568; prevents downcoding to non-selective procedure
Bill 93573 only once regardless of multiple injections in each pulmonary artery; this is an all-inclusive bilateral code
Impact: Prevents duplicate billing denials and potential fraud allegations; multiple bilateral attempts are bundled into single code
Verify that selective catheterization is documented separately from non-selective pulmonary trunk injections (93567)
Impact: Non-selective pulmonary trunk angiography pays only $37.46; selective bilateral documentation justifies 58% higher payment
Ensure radiologic supervision and interpretation is documented if billing the complete procedure rather than components
Impact: Complete documentation supports the full 1.83 RVU value; missing S&I documentation may trigger modifier 26/TC split
When performed with right heart catheterization (93451-93453), document the separate and distinct nature of selective pulmonary angiography
Impact: Prevents bundling with comprehensive catheterization codes; may require modifier 59 to receive separate $59.19 payment
Review NCCI edits before billing with other cardiac catheterization codes; some combinations are bundled and cannot be separated
Impact: Avoids automatic denials and reduces claim rework; understanding bundling rules prevents revenue leakage

Live Field Datano reports yet

Real billers contribute denial patterns and appeal strategies for this code. Once 5+ reports come in, you’ll see live aggregated data here — the only place this exists, free.

Working with CPT 93573?

Get the free Revenue Protection Toolkit — the denial triggers, modifier pitfalls, and bundling conflicts that quietly cost you reimbursement. Instant download.

Help build the field knowledge

MedPayIQ gets smarter as billers contribute. If you've had this code denied, share what happened so others learn from it. Anonymous, no patient info.

Related actions

Frequently asked questions

What is the Medicare reimbursement rate for CPT code 93573 in 2025?

The 2025 Medicare national average reimbursement rate for CPT 93573 is $59.19 for both facility and non-facility settings. This is based on a total of 1.83 RVUs multiplied by the 2025 conversion factor of 32.3465.

What is the difference between CPT 93573 and 93568?

CPT 93573 is for bilateral selective pulmonary artery angiography (both right and left pulmonary arteries), while CPT 93568 is for unilateral selective pulmonary artery angiography (one side only). The bilateral code 93573 pays $59.19 compared to approximately $44.52 for the unilateral procedure, requiring documentation of selective catheterization and imaging of both pulmonary artery branches.

Can CPT 93573 be billed with right heart catheterization codes?

CPT 93573 can potentially be billed with right heart catheterization codes (93451-93453), but NCCI edits may bundle these services. You may need modifier 59 to indicate a distinct procedural service if the selective bilateral pulmonary angiography was performed beyond the standard catheterization protocol for a separate diagnostic purpose. Documentation must clearly support the medical necessity of additional selective imaging.

How many RVUs is CPT code 93573 worth in 2025?

CPT 93573 has a total of 1.83 RVUs in 2025, consisting of 1.3 work RVUs, 0.45 practice expense RVUs, and 0.08 malpractice RVUs. The practice expense RVUs are the same for both facility and non-facility settings.

What documentation is required to bill CPT 93573?

Documentation must include selective catheter placement in both the right and left pulmonary arteries with separate contrast injections, fluoroscopic imaging of both pulmonary vascular beds, radiologic supervision and interpretation for bilateral studies, hemodynamic data if obtained, medical necessity for the bilateral approach, and physician interpretation signed and dated. Missing documentation of either pulmonary artery may result in downcoding to the unilateral code 93568.

Is CPT 93573 a unilateral or bilateral code?

CPT 93573 is inherently a bilateral code covering selective angiography of both the right and left pulmonary arteries. It should only be billed once per session regardless of the number of injections. Do not append laterality modifiers (RT/LT) to this code. For unilateral selective pulmonary angiography, use CPT 93568 with the appropriate laterality modifier.

What are common denial reasons for CPT 93573?

Common denials include bundling with comprehensive right heart catheterization codes, insufficient documentation of bilateral selective catheterization resulting in downcoding to unilateral code 93568, medical necessity denials when clinical indication is unclear, and duplicate billing when providers incorrectly bill the code twice for right and left sides. Proper documentation of selective catheter placement in both pulmonary arteries with distinct diagnostic purpose helps prevent these denials.