In this chapter:
(1) "Enrollee" means an individual entitled to coverage under a health benefit plan.
(2) "Foreign country" means a governmental unit other than:
(A) the United States;
(B) a state, district, commonwealth, territory, or insular possession of the United States;
(C) the Panama Canal Zone; or
(D) the Trust Territory of the Pacific Islands.
(3) "Health care service" means a service to diagnose, prevent, alleviate, cure, or heal a health condition, sickness, or injury that is provided to an enrollee by a physician or other health care provider.