In simple words: This code describes problems with the mitral valve in the heart caused by rheumatic fever, a condition stemming from a strep infection.It covers different types of valve issues, like narrowing or leaking.

I05, Rheumatic mitral valve diseases, encompasses various conditions affecting the mitral valve due to rheumatic fever.This includes mitral stenosis (I05.0), rheumatic mitral insufficiency (I05.1), mitral stenosis with insufficiency (I05.2), and other specified rheumatic mitral valve diseases (I05.8).The code excludes mitral valve disease specified as nonrheumatic (I34.-) and cases with additional aortic and/or tricuspid valve involvement (I08.-).

Example 1: A 55-year-old patient presents with shortness of breath and fatigue.Echocardiogram reveals mitral stenosis secondary to rheumatic heart disease. Code I05.0 is assigned., A 40-year-old patient with a history of rheumatic fever exhibits symptoms of mitral regurgitation and mitral stenosis.Cardiac catheterization confirms the diagnosis. Code I05.2 is assigned., A 60-year-old patient experiences chest pain, palpitations, and shortness of breath.Examination reveals signs of mitral valve dysfunction, consistent with rheumatic heart disease.Further investigations are needed to specify the type of valve disease. Code I05 is assigned initially.

Complete medical history, physical examination findings, echocardiogram report, cardiac catheterization report (if performed), and other relevant diagnostic tests to confirm the diagnosis of rheumatic mitral valve disease and specify the type of valve involvement.

** This code is used for rheumatic valvular heart disease affecting only the mitral valve.If other valves are involved, different codes (such as I08) should be used.Accurate documentation is crucial for appropriate coding and reimbursement.