A child whose entitlement to child’s insurance benefits on the basis of the wages and self-employment income of an insured individual terminated with the month preceding the month in which such child attained the age of 18, or with a subsequent month, may again become entitled to such benefits (provided no event specified in paragraph (1)(D) has occurred) beginning with the first month thereafter in which he—
(A) (i) is a full-time elementary or secondary school student and has not attained the age of 19, or (ii) is under a disability (as defined in section 423(d) of this title ) and has not attained the age of 22, or
(B) is under a disability (as so defined) which began (i) before the close of the 84th month following the month in which his most recent entitlement to child’s insurance benefits terminated because he ceased to be under such disability, or (ii) after the close of the 84th month following the month in which his most recent entitlement to child’s insurance benefits terminated because he ceased to be under such disability due to performance of substantial gainful activity,
but only if he has filed application for such reentitlement. Such reentitlement shall end with the month preceding whichever of the following first occurs:
(C) the first month in which an event specified in paragraph (1)(D) occurs;
(D) the earlier of (i) the first month during no part of which he is a full-time elementary or secondary school student or (ii) the month in which he attains the age of 19, but only if he is not under a disability (as so defined) in such earlier month; or
(E) if he was under a disability (as so defined), the termination month (as defined in paragraph (1)(G)(i)), subject to section 423(e) of this title , or (if later) the earlier of— (i) the first month during no part of which he is a full-time elementary or secondary school student, or (ii) the month in which he attains the age of 19.