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

This code signifies a past injury involving a laceration to an unspecified area of the back wall of the thorax, where a foreign body was present and penetrated the thoracic cavity. The "sequela" designation indicates that this code is used to report a condition or complication arising as a direct result of this previous injury, not the acute injury itself.

Use this code when documenting a current condition or symptom that is a long-term consequence of a prior penetrating laceration to the posterior thorax with a foreign body. Examples include chronic pain, nerve damage, or respiratory issues directly attributable to the old injury. This code is not for the initial treatment of the laceration.

• Always ensure the documentation clearly links the current condition to the specified past injury.
• Do not use this code for the initial encounter of the laceration; instead, use an acute injury code.
• Requires a seventh character "S" for sequela, indicating a complication or condition arising from a previous injury.