I just wanted to pass on some info that I received from SSI.Discharging your student loan..
If you have a permanent disability you can print up this simple 4 page application and have your doctor fill out the 2nd page (Your doctor must mention that you are permanently disabled)it's a very short form but must be filled out very accurately, They are very strict and will deny the application if it's not dated. here's the link:
http://www.studentloanborrowerassistance.org/blogs/wp-content/www.studentloanborrowerassistance.org/uploads/File/selfpackets/disability.pdf