I've read many soccer statistics and I'm almost sure there is no current figure of how many assists Maradona provided while playing for Argentina. But all of Maradona's games are recorded and it's possible to get those stats. Has 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
I'd also encourage you to explore Maradona's Transfermarkt profile. The values appear different than the current accepted answer. I personally trust the fidelity of Transfermarkt statistics and enjoy exploring the various statistics disaggregations and details for the respective games played.