The elephant in the room is this: Why have you missed 10 days of school?
I think that most schools are more than willing to work with a student facing a medical crisis. If you’re recovering from surgery, they can arrange to have you tutored by someone within the school system. If you’re recovering from a concussion, there are guidelines in place that dictate how much work you’ll be allowed to handle.
In short, the first priority is the medical one. Otherwise, the absences will continue to pile up.