Chronic rheumatic heart diseases (I05-I09)

ICD-10 codes I05 through I09 are used to classify a range of chronic rheumatic heart diseases affecting heart valves and heart tissue due to rheumatic fever. These codes identify specific conditions like valve stenosis, insufficiency, and combined valve disorders on the mitral, aortic, and tricuspid valves.

This code block includes detailed classifications such as rheumatic mitral stenosis (I05.0), also known as mitral valve stenosis or rheumatic mitral valve obstruction, and rheumatic aortic insufficiency (I06.1), commonly called rheumatic aortic regurgitation. It also covers combined valve diseases (I08), including simultaneous involvement of mitral, aortic, and tricuspid valves. Additionally, codes like I09.0 address rheumatic myocarditis (inflammation of the heart muscle), while I09.81 specifies rheumatic heart failure, also referenced as chronic left-sided congestive heart failure due to rheumatic disease. Unspecified categories like I05.9 and I09.9 are used when detailed valve or tissue involvement is not documented. These codes support precise coding for rheumatic damage to heart valves and related heart conditions commonly resulting from rheumatic fever sequelae.