You could maybe say that you have 'Treated'…or 'managed' Bipolar 2. You may also need to list your medications. Unless the symptoms of your illness will impede your ability to fullfill your duties, there is no reason why they should deny your application. It may be a good idea to add a footnote that you can provide more information/details on request. You may want to ask your treating doctor for a letter stating your capacity to work aswell.

Best of luck x_baby