[QUOTE=justafriend306;5143082]Not sure how this works. Won't a letter from the mental health team suffice?[/QUOTE

Short answer: No.

When I applied part of the application was to include contact info for a person that is familiar with the applicant's day-to-day living. I was married when I applied so I listed my husband. They called him and asked a lot of questions about me. Many of the questions were ones I answered on the application. They wanted to also get the opinion and observations from my husband. All concerning daily life activities. Like can she cook a simple meal? Can she shop for groceries on her own, what does she do during the day, can she count change, dress herself, etc.

Any medical documentation - they want it. No matter if it's a sprained ankle and the main reason you are applying is for bipolar disorder, for example.
The want copies and you just list your health care providers, any hospitals, etc. They contact them and get your records - the applicant just needs to say where they received treatment.

My psychiatrist and therapist did submit letters of their own ... I never saw them or knew what they said, but those letters are very important but not enough. They want your entire medical history. And to talk to the applicant's contact person that is familiar with the applicant's day to day life.

That was how it worked in 2009. There may have been some changes but medical records from treatment providers are critical.