Contusion of lung, unilateral, initial encounter

This code signifies a bruise to a single lung, typically resulting from blunt force trauma to the chest. It indicates damage to the lung tissue without a laceration or puncture, often leading to localized bleeding and swelling within the lung.

Apply this code for patients presenting with a lung contusion affecting only one lung, such as after a motor vehicle accident, fall, or direct blow to the chest. This code is specifically for the initial treatment or evaluation of the injury.

• Ensure documentation specifies "unilateral" to differentiate from bilateral lung contusions.
• Confirm the encounter is the "initial encounter" for this specific injury.
• Look for associated injuries, such as rib fractures, and code them separately.