Pnctr w fb of l bk wl of thorax w/o penet thor cavity, sqla

This code describes a past injury to the left posterior chest wall caused by a sharp object that left a foreign body embedded in the tissue. Importantly, the injury did not extend into the lung cavity itself. The "sequela" designation indicates that this code is used for complications or conditions arising as a direct result of this previous injury, even after the initial wound has healed.

Use this code when documenting a current condition or complication directly attributable to a previous puncture wound with a retained foreign body in the left back wall of the thorax, where the initial injury did not penetrate the thoracic cavity. This would apply to follow-up encounters for issues like chronic pain, infection related to the foreign body, or scar tissue complications.

• Always ensure the documentation clearly states the foreign body is still present and that the thoracic cavity was not penetrated.
• The "S" seventh character indicates sequela; this code should not be used for the initial encounter or active treatment of the acute injury.
• Look for documentation of a causal link between the current condition and the specified past injury.