Ask Dr. Z

Can you please help me with the following case? Provider performed a 'lend a hand" external bypass from the left common femoral to the right superficial artery. Documentation states the following: Successful placement of an external bypass from left common femoral artery to right superficial femoral artery via 5 French antegrade sheath. Technique:I decided to perform an external bypass from the left common femoral artery to the right superficial femoral artery via an antegrade sheath in the right SFA. A 7 French sheath was placed in the left common femoral artery under real-time ultrasound guidance and micropuncture technique after administering local anesthesia. Similarly, a 5 French sheath was placed in the right superficial femoral artery. Subsequently the 2 sheaths were connected using a male-to-male connector after adequate de-airing. 

I am leaning more to an unlisted code, but would appreciate your expertise on this.