Oth injury of right innominate or subclavian artery, sequela

This code signifies a long-term or late-effect complication stemming from a previously sustained injury to the right innominate (brachiocephalic) or subclavian artery, where the specific type of injury is documented but doesn't fit more precise categories. These sequelae can include issues like chronic dissection, pseudoaneurysm, stenosis, or other persistent vascular abnormalities resulting from the initial trauma.

Apply this code when a patient presents with a current condition directly attributable to an old, resolved injury of the right innominate or subclavian artery, and the specific nature of that original injury was documented as "other specified." This is appropriate for follow-up encounters addressing the chronic consequences of such arterial trauma, not the initial acute injury.

• Always sequence this sequela code after the code for the specific current condition or manifestation being treated (e.g., chronic dissection, stenosis).
• Ensure documentation clearly links the current problem to a previous injury of the right innominate or subclavian artery, and that the original injury was not a laceration, puncture, or contusion.
• The "S" seventh character indicates a sequela, meaning the acute phase of the injury has passed, and the patient is now experiencing a residual effect.