IOP is for depression that is real and persistent while your teen still makes it to class and keeps up with daily life. It fits when low mood shows up consistently at school, at home or with friends, short of the crisis or full disruption that PHP addresses.
Treatment experience, not age, decides the path. River Path, held Tuesday through Thursday, starts teens new to intensive treatment with awareness of low self-esteem, hopelessness and apathy. Horizon Path, held Monday, Wednesday and Friday, serves PHP graduates and teens already skilled in DBT. Those teens work on reducing isolation and noticing how depression shows up in their body and their life.
Both paths take place in the afternoons, keeping school attendance intact. Symptom progress and clinical need guide how long each teen stays.