For purposes of this subchapter:

(1) “Cost-sharing requirement” means any copayment, coinsurance, deductible, or annual limitation on cost-sharing (including a limitation subject to 42 U.S.C. §§ 18022(c) and 300gg-6(b)), required by or on behalf of an enrollee in order to receive a specific health care service, including a prescription drug, covered by a health benefit plan.

(2) “Enrollee” means any individual entitled to health care services from an insurer.

(3) “Health benefit plan” means a policy, contract, certification, or agreement offered or issued by an insurer to provide, deliver, arrange for, pay for, or reimburse any of the costs of health care services.

(4) “Health care service” means a policy, contract, certification, or agreement offered or issued by an insurer to provide, deliver, arrange for, pay for, or reimburse any of the costs of health care services.

(5) “Insurer” means as defined under § 3321A of this title.

(6) “Person” means a natural person, corporation, mutual company, unincorporated association, partnership, joint venture, limited liability company, trust, estate, foundation, not-for-profit corporation, unincorporated organization, government or governmental subdivision or agency.

(7) “Pharmacy benefits manager” means as defined under § 3302A of this title, and shall include any person, business, or other entity that, pursuant to a contract or under an employment relationship with an insurer, either directly or through an intermediary, manages the prescription drug benefit provided by the insurer, including the processing and payment of claims for prescription drugs, the performance of drug utilization review, the processing of drug prior authorization requests, the adjudication of appeals or grievances related to the prescription drug benefit, contracting with network pharmacies, and/or controlling the cost of covered prescription drugs.

83 Del. Laws, c. 522, § 3;