No. The Groshong Catheter placement (36556) is for establishing long term IV access for IV antibiotic treatment of the infection, in this case the knee. It is placed into the Subclavian Vein of the neck by tunneling under the clavicle. The 27488 for removal of the knee prosthesis for the knee infection and placement of a cement spacer would include whatever antibiotics are incorporated/mixed in(to) the cement. The 11981 code is in the Skin and Integumentary Section of surgical procedure codes and applies to placement of a drug delivery implant under the skin, i.e. subcutaneous, and not into deeper tissues, so its use is not warranted. It is not the same as a Groshong Catheter or an Antibiotic Spacer.
Hopefully this helps you.
Respectfully submitted, Alan Pechacek, M.D.