J95: Postprocedural respiratory disorders, not elsewhere classified

J95.1: Acute pulmonary insufficiency following thoracic surgery

The lungs are on the left and right side of the ribcage. They are also connected to the nose and mouth via the bronchial tubes and windpipe (trachea). You need lungs to breath. When we breathe in, oxygen enters the lungs and accumulates in the blood. This blood then flows to the heart. The heart then pumps the oxygen-rich blood throughout the body. All of the organs are supplied with oxygen as a result.

An operation was performed on your ribcage. Your lungs are no longer working properly. That has occurred after the operation. As a result, your lungs are no longer absorbing enough oxygen. As a result, you have less oxygen in your blood than normal.