The  thing  to  be  aware  of  though  is  that  although  the   commonly  used  CVs  are  usually  the  same  for  most  manufacturers  decoders  (  such  as  Accel.   Deccel.  start  volts,   Loco  address  etc)  Some  of  the  other  CVs  are  not  always  the  same 'number'  particularly with  sound  decoders
I  would  advise  that  it  is  always  best  to  refer  to  the  CV list supplied  with  a  particular  Digital  'onboard' loco  OR  the  Cv  list  supplied  with  a  decoder  fitted   to  a loco subsequently.
Always  remebring  of  course  to  make  a  note  of  which  loco  has   which  decoder  type  in it,  so  that  you  dont  have  to  have  a look  first!!!!!  as  I  have  had  to  do   on  some occasions!!