I have a patient who comes in routely for callous care. History, callous is a residual of a stage 4 pressure ulcer. callous measures 0.4 with depth of 0.3cm. no open ulcerations, with moderate callous buildup. physician cleans with chlorhexidine and debrides with curette. Every coder has coded this differently. some use 97597, 11055,99212. would anyone take this to a sequela vs a routine care for callous? Any ideas would be helpful.