Traumatic pneumothorax with open wound into thorax

This code signifies a collapsed lung (pneumothorax) that results from trauma and involves an open wound that penetrates the chest wall. The open wound allows air to enter the pleural space, leading to lung collapse. This is a severe injury often associated with significant external force.

Apply this code when documentation clearly indicates a traumatic pneumothorax co-occurring with an open chest wound. This typically arises from penetrating injuries such as stabbings, gunshot wounds, or impalement. Physician notes should specify both the pneumothorax and the presence of an open wound extending into the thoracic cavity.

• Differentiate from spontaneous pneumothorax or traumatic pneumothorax without an open wound.
• Always sequence this code as the primary diagnosis if it is the reason for the encounter.
• Look for documentation of the mechanism of injury and the specific nature of the wound (e.g., "penetrating chest wound with pneumothorax").