Major laceration of thoracic aorta, sequela

This code signifies a long-term complication or residual effect stemming from a significant tear or wound in the thoracic aorta, the main artery in the chest. These sequelae can include chronic dissection, pseudoaneurysm formation, or persistent functional impairment directly attributable to the original injury.

Apply this code when documenting a patient presenting with a current condition that is a direct consequence of a previously sustained major laceration of the thoracic aorta. This is used for follow-up care or management of these chronic complications, not for the initial acute injury.

• Always use this code as a secondary diagnosis, following the code for the specific sequela being treated.
• Ensure documentation clearly links the current condition to the past thoracic aorta laceration.
• Do not use for initial encounters of acute thoracic aorta lacerations; those require acute injury codes.