| I31 | Other diseases of pericardium | NON-BILLABLE CODE |
| I31.0 | Chronic adhesive pericarditis | BILLABLE CODE |
| I31.1 | Chronic constrictive pericarditis | BILLABLE CODE |
| I31.3 | Pericardial effusion (noninflammatory) | NON-BILLABLE CODE |
| I31.31 | Malignant pericardial effusion in diseases classified elsewhere | BILLABLE CODE |
| I31.39 | Other pericardial effusion (noninflammatory) | BILLABLE CODE |
| I31.4 | Cardiac tamponade | BILLABLE CODE |
| I31.8 | Other specified diseases of pericardium | BILLABLE CODE |
| I31.9 | Disease of pericardium, unspecified | BILLABLE CODE |
