CPT Code 93306: Payer-Specific Compliance, Audit Defense and Denial Recovery Playbook [2026]

The average cardiology practice bills CPT code 93306 between 40 and 80 times per week. At roughly $220 per claim, that’s $450,000 to $900,000 in annual echocardiogram revenue from a single CPT code. Yet CMS Recovery Audit Contractor data shows that transthoracic echocardiography ranks among the top 10 most audited diagnostic services in Medicare, with […]