Mitral valve disorders

This code identifies a range of non-rheumatic conditions affecting the mitral valve, the bicuspid valve located between the left atrium and left ventricle of the heart. These disorders can involve structural abnormalities, functional impairments, or degenerative changes of the valve leaflets, chordae tendineae, or papillary muscles.

Apply this code when documentation indicates a non-rheumatic mitral valve disorder, such as mitral valve prolapse, mitral insufficiency (regurgitation), or mitral stenosis, without specifying a rheumatic origin. This code is appropriate for initial diagnoses or when the specific type of mitral valve disorder is not further elaborated.

• This is a general code for unspecified mitral valve disorders; strive for greater specificity if documentation allows for a more precise diagnosis (e.g., mitral valve prolapse with insufficiency).
• Distinguish carefully between non-rheumatic and rheumatic mitral valve disorders; rheumatic conditions are classified elsewhere.
• Always review the entire medical record for any mention of a specific cause or type of mitral valve disorder to ensure the most accurate and specific code is assigned.