(a) A recipient described by § 32.025(a) who experiences a temporary increase in income of a duration of one month or less that would result in the recipient being ineligible for medical assistance continues to be eligible for that assistance if the individual:
(1) either:
(A) receives services through a program for individuals with an intellectual or developmental disability authorized under Section 1915(c), Social Security Act (42 U.S.C. § 1396n(c)); or
(B) resides in an ICF-IID facility; and
(2) continues to meet the functional and diagnostic criteria for the receipt of services under a program described by Subdivision (1)(A) or for residency in an ICF-IID facility.
(b) To continue to be eligible for medical assistance, a recipient described by Subsection (a) must submit an application for medical assistance in accordance with § 32.025(b) not later than the 90th day after the date on which the recipient is determined ineligible.