This happened to me last year. Best thing to do is download the return and ctrl f search that number. It can tell you what it is and you can look to see if that is something to fight for. Turbo tax hasn't really been helpful with that and irs always says lines are full call back tomorrow. I had to call a retired irs rep in the family to find that out. It turned out in my case that Turbo tax filed for a fee extention without asking and irs turned it down. I want going to fight that cause if have to pay it anyways just later. Hope this helps
