2025 CPT code 33412
(Active) Effective Date: N/A Revision Date: N/A Surgery - Surgical Procedures on the Cardiovascular System Surgery Feed
Replacement of the aortic valve with transventricular aortic annulus enlargement (Konno procedure).
Modifiers may apply depending on circumstances such as multiple procedures (modifier 51), differing surgeons (modifier 62), or other qualifying factors.Refer to the most up-to-date CPT guidelines.
The procedure is medically necessary to treat symptomatic aortic stenosis or regurgitation when less invasive options are not suitable. Documentation should support the severity of the condition and the necessity of surgical intervention.For congenital cases, the documentation should clearly delineate the nature and severity of the congenital defect.
The surgeon performs the procedure, including opening the chest, cardiopulmonary bypass, detaching and reattaching coronary arteries, excising and replacing the aortic valve, and closing the incision.
In simple words: The doctor replaces a faulty heart valve with an artificial one.Sometimes, they also enlarge the opening where the valve sits to make it easier to put in the new valve. This fixes problems with the heart valve not opening or closing properly.
This procedure involves replacing a patient's diseased aortic valve with a prosthetic valve.It includes transventricular aortic annulus enlargement, a technique often used in the Konno procedure to facilitate the implantation of a larger prosthetic valve. This addresses aortic valve stenosis or regurgitation. The procedure may involve opening the chest (sternotomy), placing the patient on cardiopulmonary bypass (CPB), detaching coronary arteries from the aortic root, excising the aortic root and valves, opening the left ventricular outflow tract, positioning the new valve, reattaching coronary arteries, and closing the chest incision.The Konno procedure specifically addresses congenital aortic stenosis at the junction of the left ventricle and aorta.
Example 1: A 70-year-old patient presents with severe aortic stenosis and symptoms of angina and shortness of breath.A transcatheter aortic valve replacement (TAVR) is deemed too high risk due to severe calcification. Open heart surgery with aortic valve replacement and transventricular aortic annulus enlargement is performed to allow for a larger prosthetic valve., A 25-year-old patient presents with congenital aortic stenosis at the junction of the left ventricle and aorta. The Konno procedure is chosen due to the nature of the defect. The aortic valve is replaced, and the annulus is enlarged to accommodate the prosthetic valve., A 60-year-old patient undergoes a reoperation for aortic valve replacement due to previous valve failure.The surgeon performs the procedure, noting increased difficulty in accessing and repairing the area due to previous surgery.Code 33530 would likely be reported in addition to 33412.
Preoperative echocardiogram demonstrating aortic stenosis or regurgitation; Intraoperative notes detailing the surgical approach, valve replacement technique, and annulus enlargement; Postoperative echocardiogram confirming valve function and absence of leaks.
** The information provided here is for general guidance only. Always refer to the most up-to-date CPT coding manuals and guidelines for accurate coding and reimbursement.
- Payment Status: Active
- Modifier TC rule: Not applicable. This code represents the entire procedure.
- Specialties:Cardiothoracic Surgery
- Place of Service:Inpatient Hospital, Ambulatory Surgical Center