HCPCS Level II code C8926 describes transesophageal echocardiography (TEE) performed for evaluation of congenital cardiac anomalies, including probe placement, image acquisition, interpretation, and report; the service may be performed with contrast, or initially without contrast followed by with contrast. This is an advanced diagnostic cardiac imaging service typically provided by cardiology or pediatric cardiology teams and performed in an inpatient or outpatient hospital setting or an advanced cardiac imaging center where transesophageal probe placement and image acquisition are available.