Major laceration of left innominate or subclav art, sequela

This code signifies a long-term complication or residual effect stemming from a significant tear or cut in the left innominate (brachiocephalic) or subclavian artery. These arteries are crucial for blood supply to the head, neck, and left upper limb. A major laceration can lead to chronic issues such as pseudoaneurysm, stenosis, or persistent pain and functional impairment.

Use this code when documenting a patient presenting with a current condition that is a direct consequence of a previously sustained major laceration to the left innominate or subclavian artery. This applies to follow-up encounters for chronic issues, not the initial acute injury. The "S" seventh character indicates that the condition being treated is a sequela.

• Always ensure the patient's medical record clearly links the current condition to the past major laceration of the specified artery.
• Do not use this code for the initial acute injury; instead, use the appropriate acute injury code.
• Verify laterality (left) and the specific artery (innominate or subclavian) are accurately documented.