You can check this site for a list of codes, click on the top left button where it says "Ironworks Website" and visit the BG2/Cheats section.
You can also get a full list by downloading the Shadowkeeper savegame editor from
www.mud/master.com/shadowkeeper.
Just be aware that the syntax you need to use after hitting CTRL+TAB is:
CLUAConsole:CreateItem("xxxxxx");
where xxxxxx is the item code you want.