Will colleges reimburse tuition for student medical withdrawals?

My son goes to a technical college. He recently chose to drop his summer class at midterm due to some mental health issues which resulted in a brief inpatient hospital stay (he was getting a B so doing well but he knew he wouldn’t have the focus for the rest of the semester). His college allows one extenuating circumstance per student while enrolled of which we got 80% of the tuition back.