Texas Insurance Code - INS § 222.001. Applicability of Chapter

(a) This chapter applies to any insurer, including a group hospital service corporation, any health maintenance organization, and any managed care organization that receives gross premiums or revenues subject to taxation under Section 222.002, including companies operating under Chapter 841, 842, 843, 861, 881, 882, 883, 884, 941, 942, 982, or 984, Insurance Code, Chapter 533, Government Code, or Title XIX of the federal Social Security Act.

(b) This chapter does not apply to:

(c) For purposes of computing the tax imposed by this chapter, a managed care organization is treated in the same manner as a health maintenance organization.