Lac w/o fb of l frnt wl of thorax w penet thor cavity, subs

This code signifies a wound on the left anterior chest wall that has breached the thoracic cavity, but without any foreign object embedded in the tissue. The injury is characterized by a tear or cut in the skin and underlying tissues, extending deep enough to penetrate the pleura or other structures within the chest.

Apply this code for follow-up encounters related to a left-sided chest laceration that initially penetrated the thoracic cavity and did not involve a foreign body. This includes visits for wound care, monitoring for complications, or assessment of healing after the initial treatment of the injury.

• Ensure documentation clearly states "left front wall of thorax" and "penetration into thoracic cavity."
• Verify the absence of a foreign body; if present, a different code is required.
• The "D" seventh character indicates a subsequent encounter, meaning care after the initial active treatment.