In this section, the term “medically necessary leave of absence” means, with respect to a dependent child described in subsection (b)(2) in connection with a group health plan or health insurance coverage offered in connection with such plan, a leave of absence of such child from a postsecondary educational institution (including an institution of higher education as defined in section
1002 of title
20), or any other change in enrollment of such child at such an institution, that—