| I30 | Acute pericarditis |
| I30.0 | Acute nonspecific idiopathic pericarditis |
| I30.1 | Infective pericarditis |
| I30.8 | Other forms of acute pericarditis |
| I30.9 | Acute pericarditis, unspecified |
| I31 | Other diseases of pericardium |
| I31.0 | Chronic adhesive pericarditis |
| I31.1 | Chronic constrictive pericarditis |
| I31.2 | Hemopericardium, not elsewhere classified |
| I31.3 | Pericardial effusion (noninflammatory) |
| I31.31 | Malignant pericardial effusion in diseases classified elsewhere |
| I31.39 | Other pericardial effusion (noninflammatory) |
| I31.4 | Cardiac tamponade |
| I31.8 | Other specified diseases of pericardium |
| I31.9 | Disease of pericardium, unspecified |
| I32 | Pericarditis in diseases classified elsewhere |
| I33 | Acute and subacute endocarditis |
| I33.0 | Acute and subacute infective endocarditis |
| I33.9 | Acute and subacute endocarditis, unspecified |
| I34 | Nonrheumatic mitral valve disorders |
| I34.0 | Nonrheumatic mitral (valve) insufficiency |
| I34.1 | Nonrheumatic mitral (valve) prolapse |
| I34.2 | Nonrheumatic mitral (valve) stenosis |
| I34.8 | Other nonrheumatic mitral valve disorders |
| I34.81 | Nonrheumatic mitral (valve) annulus calcification |
| I34.89 | Other nonrheumatic mitral valve disorders |
| I34.9 | Nonrheumatic mitral valve disorder, unspecified |
| I35 | Nonrheumatic aortic valve disorders |
| I35.0 | Nonrheumatic aortic (valve) stenosis |
| I35.1 | Nonrheumatic aortic (valve) insufficiency |
| I35.2 | Nonrheumatic aortic (valve) stenosis with insufficiency |
| I35.8 | Other nonrheumatic aortic valve disorders |
| I35.9 | Nonrheumatic aortic valve disorder, unspecified |
| I36 | Nonrheumatic tricuspid valve disorders |
| I36.0 | Nonrheumatic tricuspid (valve) stenosis |
| I36.1 | Nonrheumatic tricuspid (valve) insufficiency |
| I36.2 | Nonrheumatic tricuspid (valve) stenosis with insufficiency |
| I36.8 | Other nonrheumatic tricuspid valve disorders |
| I36.9 | Nonrheumatic tricuspid valve disorder, unspecified |
| I37 | Nonrheumatic pulmonary valve disorders |
| I37.0 | Nonrheumatic pulmonary valve stenosis |
| I37.1 | Nonrheumatic pulmonary valve insufficiency |
| I37.2 | Nonrheumatic pulmonary valve stenosis with insufficiency |
| I37.8 | Other nonrheumatic pulmonary valve disorders |
| I37.9 | Nonrheumatic pulmonary valve disorder, unspecified |
| I38 | Endocarditis, valve unspecified |
| I39 | Endocarditis and heart valve disorders in diseases classified elsewhere |