Tex. Ins. Code § 1201.059
(a) An accident and health insurance policy, including an individual, blanket, or group policy, and including a policy issued by a corporation operating under Chapter 842, that provides that coverage of a child terminates when the child attains a limiting age specified in the policy must provide in substance that the child's attainment of that age does not terminate coverage while the child is:
(b) To obtain coverage for a child as described by Subsection (a), the insured or group member must provide to the insurer proof of the child's incapacity and dependency:
Added by Acts 2003, 78th Leg., ch. 1274, Sec. 3, eff. April 1, 2005.
Acts 2023, 88th Leg., R.S., Ch. 30 (H.B. 446), Sec. 8.02, eff. September 1, 2023.