Yes, DS9 is the one with the PDD-NOS dx.
How did you find the inclusive day camp?? Does it cost a fortune? I didn't even know how to begin to find such a place. The Y at least was open to working with DS, they allow him to hang out in the director's office when necessary and they have been amazing about making sure's got his meds each day, and they allow him to have his packed lunch every day (the kids are meant to each the provided hot lunch and snack) and eat away from the other kids if the smells bother him.. I think most of the day is just a bit loud and chaotic and it gets to him. Especially after spending last week with some relatives out in East Texas where it's so calm every day and he's only around a handful of other kids. (And those other kids are super well behaved and calm!)