Tex. Ins. Code § 462.251
(a) Any person who has a claim under an insurance policy, other than an impaired insurer's policy, and whose claim arises from the same facts, injury, or loss giving rise to a claim against an impaired insurer or the insurer's insured, must first exhaust the person's rights under the insurance policy, including:
Added by Acts 2005, 79th Leg., Ch. 727 (H.B. 2017), Sec. 1, eff. April 1, 2007.