CPT 93351Cardiology

Stress tte complete

CPT code 93351 covers a complete stress echocardiogram, which combines an ultrasound of the heart with exercise or medication-induced stress to evaluate how well the heart functions under increased workload.

Showing rates for

National Average

Base Medicare rate

$222.54

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

1.75

PE RVU (NF)

5.04

MP RVU

0.09

Total RVU

6.88

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

NCCI bundling edits

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Billing tips

Split billing between professional (26) and technical (TC) components when performed in facility setting to ensure both facility and physician receive appropriate reimbursement
Impact: Proper component billing prevents revenue loss; improper billing can result in 100% denial for one party
Document specific reason for premature termination when using modifier 52, including heart rate achieved, symptoms, ECG changes, or imaging findings that justified stopping
Impact: Comprehensive termination documentation can preserve 50-70% of full reimbursement versus complete denial
Ensure documentation includes all required elements: baseline images, stress agent/protocol, continuous ECG monitoring, post-stress images, and complete interpretation comparing rest and stress findings
Impact: Missing any component can trigger downcoding to limited study codes or outright denial of the $222.54 reimbursement
Do not unbundle 93351 into separate rest echocardiogram and stress components; this is a complete bundled service
Impact: Unbundling attempts result in denial of additional codes and potential fraud investigation
Verify medical necessity documentation includes specific indication for stress echo rather than standard stress test alone
Impact: Inadequate justification for imaging component can result in downcoding to stress test only (93015-93018) losing approximately $150+ per study
For pharmacological stress studies, document contraindications to exercise stress and specific agent used (dobutamine, adenosine, regadenoson) with appropriate monitoring
Missing pharmacological stress justification increases audit risk and potential recoupment exposure

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Frequently asked questions

What is the 2025 Medicare reimbursement rate for CPT 93351?

The 2025 Medicare national average reimbursement for CPT 93351 is $222.54 for both facility and non-facility settings, based on 6.88 total RVUs and the conversion factor of 32.3465. Local rates may vary based on geographic practice cost indices (GPCI).

What is the difference between CPT 93350 and 93351?

CPT 93350 is a limited or follow-up stress echocardiogram, while 93351 is a complete stress echocardiography study. Code 93351 requires comprehensive imaging at rest and stress with full interpretation, whereas 93350 involves limited imaging windows or focused evaluation. The complete study (93351) has higher reimbursement reflecting the additional work and documentation required.

Can CPT 93351 be billed with a rest echocardiogram on the same day?

No, CPT 93351 is a complete study that inherently includes baseline/rest images as part of the stress protocol. Billing a separate rest echocardiogram (93306 or 93307) on the same day would be considered unbundling and will be denied. The rest images are integral to the stress echo comparison and already included in 93351 reimbursement.

Does CPT 93351 require prior authorization from Medicare or commercial payers?

Medicare typically does not require prior authorization for 93351, but many Medicare Advantage and commercial payers do require precertification for stress echocardiography. Requirements vary by payer and patient plan. Always verify authorization requirements before scheduling to prevent denials, and ensure documentation supports medical necessity based on appropriate use criteria.

How do I bill CPT 93351 if the stress test is stopped early due to patient symptoms?

When a stress echocardiogram is terminated early due to symptoms, ECG changes, or safety concerns before reaching target heart rate, bill CPT 93351 with modifier 52 (reduced services). Documentation must clearly state reason for termination, findings at time of stopping, heart rate achieved, and clinical decision-making. Reimbursement is typically reduced proportionally based on percentage of study completed.

What modifiers are most commonly used with CPT 93351?

The most common modifiers for CPT 93351 are: modifier 26 (professional component only) when physician only interprets; modifier TC (technical component) when facility provides equipment and staff but not interpretation; modifier 52 (reduced services) for incomplete studies; and modifier 59 (distinct procedural service) when performed with other procedures that might appear bundled but are clinically separate and necessary.

What are the work RVUs for CPT 93351 in 2025?

For 2025, CPT 93351 has 1.75 work RVUs, 5.04 practice expense RVUs (both facility and non-facility), and 0.09 malpractice RVUs, totaling 6.88 RVUs. These values are from the CMS Medicare Physician Fee Schedule RVU25A released December 23, 2024.