http://www.ssdfacts.com/forms/SSA-455-OCR-SM.pdf

The above is a link to a copy of the short form most people receive.

As stated in the link I provided earlier, you want to use the diagnosis found in your Fully Favorable decision. If it states Obsessive Compulsive Disorder and you only have room for Obsessive Compul, than you stop writing. Your goal is to not unneccarily have the computer kick the form to a human.

Good luck!