This subchapter does not apply to:
(1) a health benefit plan that provides coverage:
(A) for wages or payments in lieu of wages for a period during which an employee is absent from work because of sickness or injury; or
(B) only for hospital expenses;
(2) Medicaid managed care programs operated under Chapter 540 or 540A, Government Code;
(3) Medicaid programs operated under Chapter 32, Human Resources Code; or
(4) the state child health plan operated under Chapter 62 or 63, Health and Safety Code.