I've read many soccer statistics and I'm almost sure there is no current figure of how many assists Maradona made while playing for Argentina, but on the other hand, all Maradona's games are recorded and it's possible to get those stats. Have anyone calculated Maradona's assists for Argentina?
"Assists" in football are a (relatively) modern statistic and weren't collected in Maradona's playing days. Unless anyone has been through recordings of every international match Maradona played (assuming that video exists of them all, which is by no means guaranteed), this statistic isn't going to be available.
Finally, they seem to be available. They are being compiled on the Spanish version of Wikipedia.
Club assists: 208
National team assists (including u-20 assists) 33+22 = 55.
Total senior assists: 241
Total assists including U-20: 263