(a) "Policy" or "policy form" means any policy, contract, plan or agreement of life or accident and sickness insurance, including credit life insurance and credit accident and sickness insurance, delivered or issued for delivery in this state by any company subject to this article; any certificate, contract or policy issued by a fraternal benefit society; and any certificate issued pursuant to a group insurance policy delivered or issued for delivery in this state.
(b) "Company" or "insurer" means any life or accident and sickness insurance company, fraternal benefit society, nonprofit health service corporation, nonprofit hospital service corporation, nonprofit medical service corporation, prepaid health plan, dental care plan, vision care plan, pharmaceutical plan, health maintenance organization, and all similar type organizations.