In this article, unless the context otherwise requires:

1. "Drug coverage":

(a) Means any form of compensation paid to a pharmacy that dispenses prescription drugs for a patient under a contractual or other legal obligation with a health insurer or pharmacy benefit manager.

(b) Does not include either of the following:

(i) Coverage provided pursuant to Title 36, Chapter 29, Article 1.

(ii) Any amounts paid by an individual on his or her own behalf or on behalf of another individual without a contractual or legal obligation to do so.

2. "Health care plan" has the same meaning prescribed in section 20-3151.

3. "Health insurer" has the same meaning prescribed in section 20-242.

4. "Third party" means a health insurer or pharmacy benefit manager that provides or manages drug coverage under a health care plan.

5. "340B covered entity" means an entity that participates in the 340B drug discount program authorized by 42 United States Code § 256b.

6. "340B drug" means a drug that is purchased by a 340B covered entity through the 340B drug discount program authorized by 42 United States Code § 256b and that is dispensed by a pharmacy.