I don't know CT laws, I'm in CA. But here, if a child is emotionally or physically incapable of being in a classroom- they can be placed on home/hospital care. That means a teacher has to come to your home once a week and provide lessons etc. The school has a responsibility to do something- even if it's not at the level you're expecting or he needs.
However, there is often a stigma attached to H/H kids when they are returning to a classroom after an emotional leave. He may be viewed as fragile and unstable so you'll have to weigh your options as to the benefits. Contact your school district anonymously and ask them something like "We're moving to the area soon and my son has an illness that keeps him out of class for weeks at a time. What kinds of services do you offer?" Leave it neutral and nonspecific and then you'll have an answer to work with in the short run.
