In MOST states--when you are convicted, the original charge ans arrest are listed.
Believe that when the background checkers pull your record from the county courthouse they will get EVERYTHING related to that case.
So if you were arrested for X and pled to Y, you'd better believe that they will know all about X. God help you if X was something bad or on the disqualifying list--even though you were never convicted of it.
Best friend learned this the hard way.....