Rich,
If your daughter is missing a significant amount of classroom time because she has been sent out of the classroom for behavior issues, that is what you should focus on when trying to get services for her. If you have not already informed the school that your daughter has a medically diagnosed disability that impacts her behavior and social-emotional functioning, you should do so immediately via certified, return receipt mail and include a note from the M.D. stating her diagnosis and manifestations of her disability. This will "legally" inform the school that they are dealing with a child who is protected under Section 504.
How often is she sent out of class? for how long? to where? Do they ever insist that you pick her up early from school? Has she been suspended at all?