I filed the I-130 for my wife and on the receipt notice it has this code 203(a) (2) (A) and i'm curious as to what it means. Thanks

You have to read this: IMMIGRATION AND NATIONALITY ACT section 203

http://www.ins.gov/lpBin/lpext.dll/inserts/slb/slb-1/slb-21/slb-1244?f=templates&fn=document-frame.htm#slb-act203a2a