Rheumatic mitral insufficiency

This code represents a condition where the mitral valve in the heart does not close properly, leading to a backflow of blood into the left atrium during ventricular contraction. This insufficiency is specifically caused by rheumatic fever, which has damaged the valve over time.

Use this code when documentation clearly indicates mitral regurgitation or insufficiency as a sequela of rheumatic heart disease. This diagnosis is typically supported by echocardiogram findings showing mitral valve abnormalities and a history of rheumatic fever.

• Ensure documentation specifies the rheumatic origin of the mitral insufficiency; otherwise, a non-rheumatic mitral insufficiency code should be used.
• Code any active rheumatic fever (e.g., 390) or other rheumatic heart conditions (e.g., 394.0 for rheumatic mitral stenosis) if present and documented.
• Do not use this code for congenital mitral valve anomalies or insufficiency due to other acquired causes.