| I26 | Pulmonary embolism |
| I26.0 | Pulmonary embolism with acute cor pulmonale |
| I26.01 | Septic pulmonary embolism with acute cor pulmonale |
| I26.02 | Saddle embolus of pulmonary artery with acute cor pulmonale |
| I26.09 | Other pulmonary embolism with acute cor pulmonale |
| I26.9 | Pulmonary embolism without acute cor pulmonale |
| I26.90 | Septic pulmonary embolism without acute cor pulmonale |
| I26.92 | Saddle embolus of pulmonary artery without acute cor pulmonale |
| I26.99 | Other pulmonary embolism without acute cor pulmonale |
| I27 | Other pulmonary heart diseases |
| I27.0 | Primary pulmonary hypertension |
| I27.1 | Kyphoscoliotic heart disease |
| I27.2 | Other secondary pulmonary hypertension |
| I27.8 | Other specified pulmonary heart diseases |
| I27.81 | Cor pulmonale (chronic) |
| I27.82 | Chronic pulmonary embolism |
| I27.89 | Other specified pulmonary heart diseases |
| I27.9 | Pulmonary heart disease, unspecified |
| I28 | Other diseases of pulmonary vessels |
| I28.0 | Arteriovenous fistula of pulmonary vessels |
| I28.1 | Aneurysm of pulmonary artery |
| I28.8 | Other diseases of pulmonary vessels |
| I28.9 | Disease of pulmonary vessels, unspecified |