Haw. Rev. Stat. § 431L-1: Insurers prohibited from taking medicaid status into account.

Any health insurer (including a self-insured plan, a group health plan as defined in section 607(1) of the Employee Retirement Income Security Act of 1974, a health service benefit plan, a mutual benefit society, a fraternal benefit society, a health maintenance organization, a managed care organization, a pharmacy benefit manager, or other party that is, by statute, contract, or agreement, legally responsible for payment of a claim for a health care item or service) is prohibited, in enrolling an individual or in making any payments for benefits to the individual or on the individual's behalf, from taking into account that the individual is eligible for or is provided medical assistance under title 42 United States Code section 1396a (section 1902 of the Social Security Act) herein referred to as medicaid, for this State, or any other state.