Tex. Civ. Prac. & Rem. Code § 74.551

A civil action brought against a physician or health care provider for a violation of a provision of Chapter 170, 170A, or 171, Health and Safety Code, subject to an exception provided by the chapter alleged to have been violated or other law, is a health care liability claim and is subject to the same requirements as any other health care liability claim. This section does not affect a health care liability claim based on any other ground than a violation of Chapters 170, 170A, or 171, Health and Safety Code.