Major laceration of left innominate or subclav vein, sequela

This code signifies a long-term complication or late effect stemming from a significant tear or cut in the left innominate (brachiocephalic) or subclavian vein. These veins are crucial for draining blood from the head, neck, and upper limbs. A major laceration implies substantial damage, potentially leading to chronic issues such as venous insufficiency, persistent pain, or functional impairment.

Apply this code when documenting a current condition that is a direct consequence of a previously sustained major laceration to the left innominate or subclavian vein. This is appropriate for follow-up encounters where the acute injury has resolved, but its lasting effects are still being treated or monitored. Examples include chronic edema, post-thrombotic syndrome, or nerve damage attributed to the original venous injury.

• Always use this code as a secondary diagnosis, following the code for the specific sequela being treated (e.g., chronic venous insufficiency).
• Ensure documentation clearly links the current condition to the prior major laceration of the specified vein.
• Verify the laterality (left) is accurately documented in the patient's record.