5 C.F.R. § 894.511
What are the QLEs that are consistent with decreasing my type of enrollment?
(a) Loss of an eligible family member or TEI family member due to:
(1) Divorce;
(2) Death; or
(3) Loss of eligibility of a previously enrolled child or TEI child.
(b) You are an enrollee and your spouse deploys to active military service.