Recently, Assembly Health Committee Chairwoman Mia Bonta (CA-AD 18) introduced legislation that would prohibit cost-sharing for Californians under age 21. (See AB 298, introduced on January 23, 2025.) AB 298 prohibits health plans from imposing a “deductible, coinsurance, copayment, or other cost-sharing requirement for in-network health care services provided to an enrollee under 21 years of age” for policies issued or renewed after January 1, 2026.
Under AB 298, “in-network” care means covered services: (1) by a contracting provider, (2) at a contracting health facility – even if the provider is not contracted, (3) in an emergency department, and (4) noncontracted care provided due to timely access requirements pursuant to Health & Safety Code section 1367.03. The bill claims it does not expand or impact scope of coverage for out-of-network emergency services, save for emergency care provided to an enrollee under age 21.
The rules are different, though, for high deductible plans coupled with health savings accounts. For those plans, health insurance policies would be prohibited from imposing (1) a deductible, coinsurance, copayment or other cost-sharing for preventive care services for insureds under age 21; and (2) coinsurance, a copayment, or other cost-sharing for in-network care provided to an insured under age 21, once the deductible is met.
Presumably, the policy behind this legislation is to increase health care usage by younger Californians and to encourage use by reducing financial barriers for families. According to Assemblymember Bonta’s press release (no Fact Sheet has yet been published), families facing uncertain medical care for children are less likely to seek timely care for financial reasons. Citing a recent publication in JAMA Pediatrics, Financial barriers to care among low-income children with asthma: health care reform implications, Bonta’s bill would increase timely usage and mitigation of adverse health outcomes in children.
And it also makes sense that increased use as a child may lead to a “habit” of using and relying on health care as California’s children become adults. More to come in this space.