Hemothorax

This code represents the presence of blood within the pleural cavity, the space between the lungs and the chest wall. This accumulation of blood can compress the lung, impairing respiration and potentially leading to hypovolemia. It is a serious condition often resulting from trauma or underlying medical issues.

Assign this code when documentation clearly indicates the diagnosis of hemothorax, regardless of its etiology. This includes cases secondary to chest trauma, iatrogenic causes (e.g., after central line placement), or spontaneous bleeding. Supporting documentation should specify the presence of blood in the pleural space, often confirmed by imaging studies like chest X-ray or CT scan.

• Differentiate from pneumothorax (air in the pleural space) or hydropneumothorax (air and fluid).
• Always code the underlying cause of the hemothorax, if known, as a primary diagnosis when applicable.
• Be mindful of laterality if specified in the documentation (e.g., right, left, bilateral).