INSURANCE – Adds to existing law to establish certain cost-sharing requirements for health benefit plans.

Idaho's H 353 establishes rules for how drug manufacturers provide financial assistance to patients for prescription drugs covered under health insurance plans. It requires manufacturers to provide full assistance until a patient meets their out-of-pocket cost-sharing (like deductibles), prohibits discontinuing coupons mid-year, and mandates annual reporting to the state insurance department on assistance programs. The law applies to health plans effective January 2027 and excludes situations where a covered generic or biosimilar drug is medically appropriate. It does not apply to assistance for patients without insurance, which must be offered on terms at least as favorable as for insured individuals.