Lac w/o fb of unsp bk wl of thorax w penet thor cavity, sqla

This code signifies a healed injury to the back wall of the chest, specifically a laceration that extended into the thoracic cavity, but without any retained foreign object. The "sequela" indicates that this code is used to report the late effects or complications of the original injury, not the acute event itself.

Use this code when documenting conditions or symptoms arising from a past penetrating laceration to the posterior thorax that entered the chest cavity. This is appropriate for follow-up encounters where the patient is experiencing long-term issues directly attributable to the old injury, such as chronic pain, scarring, or respiratory compromise.

• Always ensure the documentation clearly states the injury is a "sequela" or "late effect" of a past event.
• Confirm the laceration was to the back wall of the thorax and involved penetration into the thoracic cavity.
• Verify there was no foreign body associated with the original injury.