Question: What is the correct code for spinal anesthesia for hip arthroplasty? Wisconsin Subscriber Answer: The correct anesthesia code is for a total hip arthroplasty is 01214 (Anesthesia for open procedures involving hip joint; total hip arthroplasty), which carries eight base units. It can be linked to surgical codes 27130 (Arthroplasty, acetabular and proximal femoral prosthetic replacement [total hip arthroplasty], with or without autograft or allograft) or 27132 (Conversion of previous hip surgery to total hip arthroplasty, with or without autograft or allograft).