I34.8: Other nonrheumatic mitral valve disorders

Other nonrheumatic mitral valve disorders, classified under the ICD-10 code I34.8, refer to abnormalities in the heart's mitral valve not directly caused by rheumatic disease. The mitral valve, located between the left atrium and left ventricle, helps facilitate the flow of oxygen-rich blood through its opening and closing. Nonrheumatic conditions potentially disrupt this action, which can lead to inefficient heart functionality. Such conditions can be congenital (present at birth) or develop over time due to factors like aging, heart disease, or injury. Symptoms may not always be apparent but, when present, can include fatigue, shortness of breath, irregular heartbeat, or swollen ankles or feet. The condition can progress, posing serious threats to cardiovascular health. Potential complications include blood clots, heart failure, or pulmonary hypertension, which underscores the importance of timely diagnoses and management. This description is based on WHO's ICD-10 2016 classification.