covered child
(2) The term “covered child” means a child of the employee who, as of the employee’s death— (A) had not attained the age of 18 years; (B) had not attained the age of 23 years and was a full-time student who had been continuously enrolled as a full-time student in one or more educational institutions since attaining the age of 18 years; or (C) had been incapable of self-support.