CHIP: How Kids Get Health Coverage

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A Pennsylvania mother named Gladde spent part of a summer watching her son’s health coverage hang on a computer glitch.

The state was moving its Children’s Health Insurance Program into a new eligibility system called Compass, and his application got stuck in the system.

Then the good news arrived: “Gladde got word Friday that caseworkers pushed her son’s application through, so he’s covered for soccer camp.”

The problem was not an isolated computer glitch. ABC27 reported that Pennsylvania’s integration of CHIP into the COMPASS system caused delays for many families, while KFF Health News separately documented a lost application and an income calculation error affecting one family’s CHIP enrollment.

That is CHIP in miniature. A program that reliably covers a huge range of care for children, wrapped in enough paperwork that families still lie awake worrying.

CHIP pays for the core of pediatric medicine: doctor visits, hospital stays, lab work, vaccines, dental care, glasses and hearing aids, and mental health treatment.

What you pay is capped by federal law at no more than 5 percent of your family’s income for the year.

When a child turns 19 and ages out, that loss opens a special window to move onto other coverage.

What CHIP Covers

CHIP is not one national plan. It is more of a set of rules: federal law sets a minimum of required benefits, and each state builds its own package on top of that minimum. This is why two families with nearly identical incomes in different states can have slightly different experiences of the same program. We covered the program’s basic structure in our guide to what CHIP is.

Federal law spells out the basic categories every CHIP plan must include: inpatient and outpatient hospital care, doctor and surgery services, lab and x-ray work, well-baby and well-child care with age-appropriate immunizations, and mental health and substance use treatment. Prescription drugs, vision, and hearing services round out the required additional categories, and states are free to cover more.

How broad that coverage runs depends partly on how a state built its program. Some states fold CHIP into Medicaid, which brings a benefit called EPSDT, short for Early and Periodic Screening, Diagnostic, and Treatment. Under EPSDT, Medicaid.gov explains, states must provide any medically necessary service within the federal Medicaid benefit categories to correct or improve a child’s condition, even if that specific service is not otherwise covered under the state plan. For children under 21, that is about as broad as coverage gets.

Standalone CHIP programs base their coverage on typical private insurance plans instead. They still have to cover the required categories, with benefit limits generally similar to those of the private benchmark plans they’re modeled on. So the number of therapy sessions approved before a review, or the exact criteria for braces, can differ from one state to the next.

Preventive care comes free, by law

The one piece of CHIP that is genuinely the same everywhere: routine preventive care costs nothing at the point of service. Section 2103 forbids states from charging any out-of-pocket fees for well-baby and well-child care or for pregnancy-related services.

A well-child screening is not a quick weight-and-height check. Medicaid.gov’s EPSDT description lays out what a full screen includes: a comprehensive health and developmental history, an unclothed physical exam, and immunizations following the standard schedule. The screen also covers lab tests including lead screening, plus health education for the family.

Free preventive care is not charity. It reflects a hard finding from the research: even small copayments push low-income families to skip the visits that do not feel urgent. As MACPAC’s review of the evidence puts it, charging fees at the doctor’s office “can reduce the use of both effective and less effective services for low-income children as well as adults in all income groups.”

Dental, vision, and hearing are core, not extras

This is where CHIP quietly outperforms a lot of private insurance. Dental coverage is not an optional add-on you buy separately. Section 2103 requires coverage of dental services that prevent disease, promote oral health, restore teeth to function, and treat emergencies. Cleanings, sealants, fillings, extractions: all in.

Orthodontics is where it gets more complicated. Covered dental care must include medically necessary orthodontic treatment, generally braces for a serious bite problem affecting chewing or speech, not cosmetic straightening. But federal law leaves each state and plan to define “medically necessary” itself, so what qualifies varies. So braces for mild crowding may be a no; treatment for a severe overbite is more likely a yes. Check your state’s medical-necessity rules before you assume either way.

Vision and hearing follow the same logic. Under Medicaid’s EPSDT benefit, which applies to CHIP programs run as Medicaid expansions, screening, diagnosis, and treatment for vision and hearing defects are required, including eyeglasses and hearing aids when medically necessary. Standalone CHIP programs may set their own, sometimes narrower, coverage rules.

Mental health, on equal footing

CHIP’s behavioral health coverage rests on two pillars. The statute requires mental health and substance use treatment as a basic category, and it demands those services be delivered in a culturally and linguistically appropriate manner.

The second pillar is parity. The Mental Health Parity and Addiction Equity Act of 2008 was enacted on October 3, 2008 as sections 511 and 512 of the Tax Extenders and Alternative Minimum Tax Relief Act of 2008 (Division C of Public Law 110-343). A 2016 update extended it to Medicaid and CHIP plans, Medicaid.gov notes.

In plain terms: a CHIP plan cannot slap a higher copay, a lower visit cap, or a tougher approval process on counseling than it uses for a comparable medical visit. Therapy for a teenager’s anxiety has to be treated no more restrictively than physical therapy for a sprained ankle.

Behavioral health is also where CHIP gets pulled into political fights. In 2017, Pennsylvania lawmakers introduced House Bill 1933, described on the General Assembly’s own page as “An Act prohibiting certain benefit packages for children’s health care and medical assistance to include gender or sex reassignment surgery or gender or sex transition services.”

One account, carried by NBC Philadelphia, described Chris, a transgender teenager from Collegeville whose subsidized CHIP coverage was one of roughly 180,000 kids’ in the state. The bill’s practical reach was narrow: the state’s acting human services secretary, Teresa Miller, noted that only 34 CHIP recipients had used coverage in 2016 for services related to gender dysphoria.

What Families Pay, and the 5 Percent Ceiling

CHIP is designed to be cheap, not always free. Above the lowest income tiers, states can charge modest monthly premiums and small copays. But federal law wraps all of it in one hard limit.

The total of premiums, deductibles, coinsurance, and copays for all of a family’s CHIP-covered children cannot exceed 5 percent of that family’s annual income. For a family earning $40,000, that means CHIP cost sharing tops out at $2,000 for the entire year, across every child enrolled.

Texas shows how a state puts the rule into practice. Its administrative code states that “the aggregate annual CHIP cost-sharing cap will not exceed 5 percent of the annual household income as required under federal law and federal regulations.”

The state’s health agency works out each family’s cap at enrollment and hands over a form to track payments. Once a family hits the ceiling, Texas’s administrative code requires the state to notify the insurance plans within two business days. After that, “an MCO will issue a new MCO Member Identification Card reflecting the absence of a co-payment requirement.” Overpayments get refunded.

Notice who is doing the tracking there. In Texas, the family carries much of the burden of watching the meter and reporting when it maxes out. A parent who does not keep careful records can pay more than the law requires, at least until the state balances things out.

The dollars involved are usually small. Enrollment fees currently run no more than $50 per family per year, with copays generally $3 to $5 for lower-income families and $20 to $35 for higher-income families, under the program’s current cost-sharing schedule. An analysis cited by the advocacy group Families USA found that, across 36 separate CHIP programs, average combined premiums and cost sharing came to $158 a year in 2015. The group argues CHIP is generally more affordable for families than covering children through employer-sponsored or marketplace coverage.

Compared with buying coverage on the individual market, the difference is stark. An analysis published by Georgetown University’s Center for Children and Families found that average annual cost sharing was substantially lower in CHIP than in a comparable Marketplace plan.

The Case For, and Against, Charging Families Anything

Why charge low-income families at all? The question sits at the center of a genuine policy disagreement, and both sides have real evidence.

The case against cost sharing is grounded in what happens when copays go up. MACPAC’s evidence review found that introducing or raising premiums reduces enrollment, with the sharpest effects among the lowest-income children. In one study of low-income children with asthma, higher cost sharing was linked to parents delaying care and borrowing money to pay for it. The American Academy of Pediatrics, in a policy statement, argues that even small charges deter families from seeking needed care and urges that pediatric coverage minimize financial barriers.

CHIP runs on a capped federal allotment, not an open-ended entitlement, so when costs rise a state must adjust eligibility, benefits, or family contributions.

Michael F. Cannon of the libertarian Cato Institute has argued for capped federal contributions to Medicaid and CHIP, such as through block grants, paired with coverage that behaves more like actuarially fair private insurance, meaning coverage priced closer to its actual cost, with some fees to discourage unnecessary care.

The strongest version of the argument runs: a slightly less generous program that reliably covers more children beats a fully free one that periodically freezes enrollment when a recession hits.

What both sides accept is that the 5 percent cap is not the whole affordability story. MACPAC’s review, citing work by Selden and colleagues, notes that some families still spend 10 percent or more of their income on premiums and cost sharing once you count coverage for every household member, adults included. The cap protects the children’s slice; it does not shrink the family’s total bill.

When Your Income Changes Midyear

This used to be the trapdoor. A parent picks up seasonal work, income ticks above the CHIP line, and the child’s coverage evaporates midway through a course of treatment. Policy people call this cycle of losing and regaining coverage “churn”.

Congress closed the trapdoor. Section 5112 of the Consolidated Appropriations Act, 2023, “changes CE from a state option to a mandatory requirement for all states for children under age 19 in Medicaid and CHIP.” The requirement is effective January 1, 2024 and applies to all children under age 19 enrolled in Medicaid and CHIP.

Here is what that means for your family. Since January 2024, once your child is enrolled, they stay covered for a full 12 months regardless of what happens to your paycheck. A raise, a second job, a bonus: none of it interrupts coverage.

According to a state health policy organization’s summary of federal guidance, the exceptions are narrow: the child turns 19, moves out of state, chooses to drop coverage, dies, or the original enrollment involved fraud or error. The same summary states that in CHIP, a child cannot even be dropped for missed premiums during the 12-month period.

Georgetown’s Center for Children and Families documented that the number of uninsured children rose between 2022 and 2024, reversing years of gains. The increase came largely as pandemic-era continuous coverage protections ended and children lost coverage in the transition, often for paperwork reasons rather than true ineligibility.

A handful of states go further. As of October 2024, the Urban Institute reports that New Mexico, Oregon, and Washington keep children enrolled up to age 6 without any yearly eligibility recheck, income changes and all, under CMS-approved state Medicaid continuous-eligibility waivers.

The rule also collides with state politics. In Florida, KFF Health News reported that lawmakers unanimously approved a 2023 expansion of the state’s KidCare program to cover more than 40,000 additional children.

The expansion has stalled: Gov. Ron DeSantis’s administration has not implemented it and is instead in court against the federal 12-month continuous coverage rule, seeking to keep the ability to drop children for unpaid premiums. A 2026 www.flgov.com study/analysis found that Florida Healthy Kids Corp. reported roughly 43,000 children dropped for non-payment from December 2024 to November 2025.

The Cliff at 19

Continuous eligibility solves midyear churn. It does nothing about the one date that ends CHIP for good.

CHIP covers children from birth up to their 19th birthday in every state. Some states cut coverage on the birthday itself; others run it through the end of that month. Either way, the wall is fixed and known in advance.

What makes the cliff sharp is the contrast with everyone else. Under the Affordable Care Act, a young adult can stay on a parent’s employer or individual plan until age 26, regardless of whether they live at home or depend on their parents. A 19-year-old whose parent has job-based insurance keeps coverage through college and into a first job. Someone aging off CHIP at 19 has to figure out adult Medicaid rules or the Marketplace on their own, often at the exact moment they are also starting work, moving out, or leaving foster care.

For a young person with a chronic condition, the birthday changes nothing clinically and everything administratively. A policy brief from the Lucile Packard Foundation finds that youth with disabilities face especially rough transitions, because they must requalify under adult rules while finding all-new doctors and services. Diabetes, epilepsy, and severe anxiety do not get easier to manage the week someone turns 19.

Does CHIP Pull Kids Off Private Coverage?

One last tension worth naming, because it shapes eligibility rules you may run into. When public coverage is this much cheaper than a parent’s job-based plan, some families rationally shift their kids onto it. Economists call this shift ‘crowd-out’.

The magnitude is contested. A National Bureau of Economic Research study of CHIP’s early impact estimated that a meaningful share of enrollment substituted for private coverage, though the same study found CHIP did not cause a big drop in employer plans. A separate study, covered by KFF Health News, found the share of children on Medicaid or CHIP despite a parent having employer coverage rose to 15.2 percent, up about 3 points.

States manage this with affordability tests rather than blanket bans. States generally hold that mere access to a job-based plan does not disqualify a child. Access to an affordable one might.

Whether that balance holds is the open question hanging over the program. CHIP runs on capped funding that Congress has to periodically renew, and the reporting from Pennsylvania and Florida shows how quickly a funding deadline or a state lawsuit can turn a stable benefit into a source of dread.

For families weighing their options right now, our guides to applying for CHIP and year-round enrollment cover the mechanics, and the InsureKidsNow helpline runs at 1-877-KIDS-NOW.

Our articles make government information more accessible. Please consult a qualified professional for financial, legal, or health advice specific to your circumstances.