Pericardial window
| Pericardial window | |
|---|---|
| ICD-9-CM | 37.12 | 
A pericardial window is a cardiac surgical procedure to create a fistula – or "window" – from the pericardial space to the pleural cavity. The purpose of the window is to allow a pericardial effusion or cardiac tamponade to drain from the space surrounding the heart into the chest cavity.