What is the appropriate code for replacement of the mitral valve with cardiopulmonary bypass?

The appropriate code for the replacement of the mitral valve with cardiopulmonary bypass is 33430. This code specifically corresponds to the surgical procedure of mitral valve replacement, which is often performed in cases of severe mitral valve disease, where the valve is either stenotic or regurgitant, necessitating surgical intervention.

The procedure typically involves the use of cardiopulmonary bypass to maintain circulation and oxygenation to the body while the heart is stopped and the valve is replaced. This context is important as it helps to underscore that the procedure is complex and requires precise coding to ensure accurate billing and documentation.

The specificity of code 33430 also indicates that it pertains only to the mitral valve, differentiating it from other cardiac valve procedures, which might have different codes. In surgical coding, correct identification of procedures is critical for appropriate reimbursement and understanding the types of interventions performed on patients.