Tricuspid valve disorders, specified as nonrheumatic

This code represents non-rheumatic conditions affecting the tricuspid valve, the valve between the right atrium and right ventricle of the heart. These disorders can include congenital anomalies, degenerative changes, or other acquired conditions not caused by rheumatic fever, leading to issues like tricuspid regurgitation or stenosis.

Use this code when documentation clearly indicates a tricuspid valve disorder that is explicitly stated as non-rheumatic in origin. This applies to conditions such as tricuspid valve prolapse, Ebstein's anomaly, or other congenital malformations, as well as acquired degenerative tricuspid valve disease.

• Ensure documentation explicitly rules out a rheumatic etiology for the tricuspid valve disorder.
• Do not use this code if the tricuspid valve disorder is secondary to rheumatic fever; instead, refer to codes within the 394-397 range.
• Look for specific diagnostic terms like "congenital tricuspid regurgitation," "Ebstein's anomaly," or "degenerative tricuspid stenosis."