Sorry to be late on this but this is a HUGE violation of federal law IF difficult child has an IEP. If not, this is one more example of why our kids should not go to high school without IEPs.
Even if the IEP is lousy and not followed, it confers legal protection that gen ed students do not have.
I do not believe that a school can disenroll a student who is ill for more than 3 days and I have heard of A LOT of abusive things done by SD, but this is right up near the top.
Hang in there and call the superintendent and try to get some leverage. difficult child's medical Tx should not be dictated by the school calendar in my opinion.
What would this school do about a child with a surgical absence?
Martie