Admin ecg contrast agent
CPT 93352 covers the administration of a contrast agent during an echocardiogram (heart ultrasound). This special dye helps create clearer images of the heart's chambers and blood flow, making it easier for doctors to diagnose heart conditions.
RVU breakdown
Conversion factor: 32.3465 · Source: CMS MPFS RVU25A · Confidence: High
Billing tips
Always bill 93352 as an add-on code with a primary echocardiography procedure (93303, 93304, 93306, 93307, 93308, 93350, or 93351)
Impact: Billing without a primary echo code results in 100% denial; the $33.96 payment depends entirely on the base procedure being approved
Document the specific brand and dosage of contrast agent administered (e.g., Definity 10 mcL/kg or Lumason 0.6 mL) in the procedure note
Impact: Missing contrast documentation is the #1 cause of denials; proper documentation protects the full $33.96 reimbursement
Clearly document medical necessity explaining why standard echocardiography was inadequate (poor acoustic windows, inability to visualize endocardial borders in 2+ segments)
Impact: Medical necessity documentation reduces denial rate by approximately 40-60%; without it, expect routine downcoding or denial
Verify payer-specific coverage policies as some Medicare Administrative Contractors and commercial payers have local coverage determinations restricting 93352 to specific clinical scenarios
Impact: Pre-verification can prevent $33.96 write-offs; some payers only cover contrast echo for specific indications like stress testing or suspected thrombus
Bill the contrast agent supply separately using HCPCS code Q9957 (Lumason) or A9700 (for other contrast agents) with appropriate units
Impact: The drug cost ($200-400 per vial) is reimbursed separately from the $33.96 administration fee; failing to bill the supply code results in significant revenue loss
Document patient consent specifically for contrast administration including discussion of potential adverse reactions
Impact: Lack of documented consent is an audit red flag; proper consent documentation reduces audit risk and potential recoupment of payments
Common denials
Missing or unbundled primary echocardiography procedure code
How to appeal: Submit corrected claim with both 93352 and the appropriate primary echo code (93303-93308, 93350, or 93351). Include operative report showing both procedures were performed. Reference CPT guidelines indicating 93352 is an add-on code requiring a primary service.
Lack of medical necessity documentation for contrast enhancement
How to appeal: Provide detailed documentation explaining inadequate visualization with standard imaging, specific segments with poor endocardial definition, and how contrast improved diagnostic accuracy. Include images if possible. Reference ACC/ASE appropriateness criteria for contrast echocardiography.
Payer policy exclusion or lack of coverage for specific indication
How to appeal: Request copy of the specific LCD or coverage policy. Submit peer-reviewed literature supporting use of contrast for the specific indication. Obtain letter of medical necessity from ordering physician. Consider peer-to-peer review with medical director.
Duplicate billing denial when performed with stress echocardiography
How to appeal: Clarify that 93352 represents contrast administration, not the stress testing itself. Provide documentation showing contrast was administered separately from the stress protocol. If contrast was given at both rest and stress, document distinct medical necessity for each administration and consider modifier 76 if appropriate.
Frequently asked questions
What is the Medicare reimbursement rate for CPT code 93352 in 2025?
The 2025 Medicare national average reimbursement for CPT 93352 is $33.96 for both facility and non-facility settings. This rate is based on 1.05 total RVUs (0.19 work RVU, 0.84 practice expense RVU, 0.02 malpractice RVU) multiplied by the 2025 conversion factor of 32.3465.
Can CPT 93352 be billed alone or does it require another code?
CPT 93352 cannot be billed alone. It is an add-on code (designated by a '+' symbol in CPT) that must be reported with a primary echocardiography procedure such as 93303, 93304, 93306, 93307, 93308, 93350, or 93351. Billing 93352 without a primary echo code will result in denial.
How do I bill for the contrast agent itself versus the administration?
CPT 93352 covers only the administration service. The ultrasound contrast agent supply must be billed separately using HCPCS code Q9957 for Lumason or A9700 for other perflutren-based agents. Report the appropriate number of units based on the dosage administered. The drug reimbursement is separate from and typically much higher than the $33.96 administration fee.
What documentation is required to support medical necessity for 93352?
Documentation must explain why standard echocardiography was inadequate, specifying which cardiac structures or segments had poor visualization (e.g., 'unable to visualize endocardial borders in apical and lateral segments due to poor acoustic windows secondary to COPD'). Include the contrast agent name and dose, patient consent, and a statement that contrast improved diagnostic quality.
Can I bill 93352 twice if contrast is given during both rest and stress portions of a stress echo?
Generally, 93352 should be reported only once per session even if contrast is administered at multiple time points during a single encounter. However, if contrast is administered for truly distinct and separate studies on the same day (e.g., rest echo in morning, stress echo in afternoon for clinical change), append modifier 76 and document the medical necessity for repeat administration.
What are the most common reasons for denial of CPT 93352?
The most common denials occur when: (1) no primary echocardiography code is billed alongside 93352, (2) medical necessity for contrast is not documented, (3) the specific contrast agent and dosage are not recorded in the procedure note, or (4) the payer has a local coverage determination restricting coverage to specific indications not met in the case.
Which medical specialties typically bill CPT code 93352?
CPT 93352 is primarily billed by cardiologists and cardiac imaging specialists performing echocardiography. It may also be used by internal medicine physicians with echocardiography privileges, hospitalists in certain settings, and emergency medicine physicians performing point-of-care echocardiography when contrast enhancement is medically necessary.