| I30 |
| Acute pericarditis |
| I31 |
| Other diseases of pericardium |
| I32 |
| Pericarditis in diseases classified elsewhere |
| I33 |
| Acute and subacute endocarditis |
| I34 |
| Nonrheumatic mitral valve disorders |
| I35 |
| Nonrheumatic aortic valve disorders |
| I36 |
| Nonrheumatic tricuspid valve disorders |
| I37 |
| Nonrheumatic pulmonary valve disorders |
| I38 |
| Endocarditis, valve unspecified |
| I39 |
| Endocarditis and heart valve disorders in diseases classified elsewhere |
| I40 |
| Acute myocarditis |
| I41 |
| Myocarditis in diseases classified elsewhere |
| I42 |
| Cardiomyopathy |
| I43 |
| Cardiomyopathy in diseases classified elsewhere |
| I44 |
| Atrioventricular and left bundle-branch block |
| I45 |
| Other conduction disorders |
| I46 |
| Cardiac arrest |
| I47 |
| Paroxysmal tachycardia |
| I48 |
| Atrial fibrillation and flutter |
| I49 |
| Other cardiac arrhythmias |
| I50 |
| Heart failure |
| I51 |
| Complications and ill-defined descriptions of heart disease |
| I52 |
| Other heart disorders in diseases classified elsewhere |