In 2011, we did a PNS lead and generator implant(64555 & 64590) in the lumbar area(no specific nerve was targeted). Now we are doing a reprogramming. Would we bill code 95972(PNS reprogramming) or 0285T(Peripheral subcutaneous field stimulation pulse generator reprogramming)? And if we do bill 0285T, are there any requirements that need to be met as in 95972(more than 30 minutes and changes to 4 or more parameters)?