Traumatic hemothorax with open wound into thorax

This code signifies the presence of blood within the pleural cavity resulting from a traumatic injury, specifically when there is an open wound that penetrates the chest wall. This condition often indicates significant chest trauma, potentially involving damage to blood vessels, lung tissue, or the heart.

Apply this code when documentation clearly indicates a hemothorax caused by trauma, and explicitly states or implies an open communication between the external environment and the thoracic cavity. This typically occurs in scenarios such as stab wounds, gunshot wounds, or other penetrating chest injuries. Supporting documentation should detail the mechanism of injury, the presence of blood in the pleural space, and the open nature of the wound.

• Ensure documentation specifies "traumatic" and an "open wound into thorax" to differentiate from spontaneous or iatrogenic hemothorax, or hemothorax without an open wound.
• Always code the underlying external cause of injury (E-code) in addition to this diagnosis.
• Consider co-occurring injuries, such as pneumothorax (860.2), and code them separately if documented.