What Are the CHIP Eligibility Changes Taking Effect October 1, 2026?
As of October 1, 2026, the 2025 reconciliation law (the One Big Beautiful Bill Act) restricts federal Medicaid and CHIP eligibility for many categories of lawfully present immigrant children, limiting coverage to lawful permanent residents (green card holders), Cuban and Haitian entrants, and nationals from Compact of Free Association (COFA) countries. Refugees, asylees, parolees, trafficking victims, and several other immigrant status categories lose CHIP eligibility on this date regardless of how long they have lived in the United States.
Who loses coverage: Children who are refugees, asylees, parolees who have been present for at least one year, victims of trafficking or domestic violence, and individuals with withholding of deportation or removal status lose federal CHIP eligibility starting October 1, 2026.
The state exception: States that have adopted the Immigrant Children’s Health Improvement Act (ICHIA) can continue covering lawfully residing children using state Medicaid and CHIP funds, preserving coverage for a broader group than the federal restrictions allow.
The billing impact: Pediatric practices will see patients lose insurance coverage with little warning, which means more uninsured well-child visits, eligibility verification failures on claims already submitted, and a revenue gap that hits hardest in practices serving diverse immigrant communities.
What Changed and Why It Matters Now
The 2025 reconciliation law, signed in July 2025, included sweeping changes to immigrant eligibility for federally funded health coverage programs. For Medicaid and CHIP, those changes take effect on October 1, 2026. The law narrows the categories of lawfully present immigrants who qualify for federal matching funds, restricting CHIP eligibility to three groups: lawful permanent residents (LPRs, commonly called green card holders), Cuban and Haitian entrants, and individuals residing under the Compacts of Free Association (COFA nationals from the Marshall Islands, Micronesia, and Palau).
Before this change, CHIP covered a much broader range of lawfully present immigrants, including refugees, asylees, parolees, victims of trafficking and domestic violence, and people granted withholding of deportation. Many of these individuals were also exempt from the five-year waiting period that otherwise applies to LPRs. Starting October 1, federal matching funds are no longer available to cover them through CHIP. The Kaiser Family Foundation (KFF) published implementation guidance on September 23, 2026, detailing how states must redetermine eligibility for all potentially affected enrollees by the October 1 date.
For pediatric practices, this is not an abstract policy shift. It is a change that will move children from insured to uninsured status on a specific date, and the billing and collections consequences land directly on the practice.
Which Pediatric Patients Are Affected?
The children most directly affected are those whose immigration status falls outside the three categories the law preserves. In practical terms, the patients losing CHIP coverage are children of refugee families, children granted asylum, children of parolees who have been present in the United States for more than one year, children who are victims of trafficking or domestic violence, and children with certain other lawful statuses that previously qualified for CHIP under the broader pre-October rules.
Children who are U.S. citizens are not affected by this change, even if their parents are immigrants. A child born in the United States remains eligible for CHIP and Medicaid based on their own citizenship status, regardless of a parent’s immigration category. The eligibility restriction applies only to the child’s own immigration status. One question we hear constantly from pediatric practice managers is whether a child loses coverage because a parent’s status changed. The answer for CHIP purposes is no: the child’s own status is what the eligibility determination evaluates.
The scope is significant. KFF estimates that the eligibility restrictions are expected to lead to approximately 100,000 individuals becoming uninsured by 2034, with the effects concentrated in states with large immigrant populations and pediatric practices that serve diverse communities.
Before and After: CHIP Eligibility by Immigration Status
The table below shows which immigration categories retain CHIP eligibility after October 1, 2026 and which lose it under the reconciliation law.
| Immigration Status | Eligible Before Oct 1, 2026 | Eligible After Oct 1, 2026 |
|---|---|---|
| Lawful permanent residents (green card holders) | Yes (after 5-year bar unless state waived it) | Yes (5-year bar still applies unless state adopted ICHIA) |
| Cuban and Haitian entrants | Yes | Yes |
| COFA nationals (Marshall Islands, Micronesia, Palau) | Yes | Yes |
| Refugees | Yes (no 5-year bar) | No (unless state adopted ICHIA for children) |
| Asylees | Yes (no 5-year bar) | No (unless state adopted ICHIA for children) |
| Parolees (present 1+ year) | Yes | No (unless state adopted ICHIA for children) |
| Trafficking and domestic violence victims | Yes | No (unless state adopted ICHIA for children) |
| Individuals with withholding of deportation/removal | Yes | No (unless state adopted ICHIA for children) |
How Does ICHIA Preserve Coverage in Some States?
The Immigrant Children’s Health Improvement Act (ICHIA), a federal option available since 2009, allows states to extend Medicaid and CHIP coverage to lawfully residing children and pregnant individuals beyond the categories required by federal law. States that have adopted ICHIA for children can continue covering the broader group of lawfully present immigrant children who would otherwise lose eligibility under the October 2026 restrictions. The reconciliation law did not eliminate the ICHIA option, which means states that have already adopted it retain a pathway to preserve coverage.
As of September 2026, roughly half of states have adopted ICHIA for children, according to KFF’s analysis. Pediatric practices in those states may see less disruption, because their patients can retain coverage under the state option even if they no longer qualify under the narrower federal rules. Practices in states that have not adopted ICHIA will see the full impact: children in the affected categories will lose CHIP coverage on October 1 with no state-level fallback.
Across the billing companies we vet for pediatric practices, the most common gap we see right now is practices that have not yet checked whether their state has adopted ICHIA. That single piece of information determines whether this is a billing disruption or a non-event for a significant portion of their patient panel.
What Pediatric Practices Should Do Now
The October 1 deadline is immediate. Practices that have not already started preparing need to act this week. Here is the priority checklist:
- Check whether your state has adopted ICHIA for children. This is the single most important variable. If your state has the ICHIA option in place, many of your affected patients can retain coverage. KFF maintains a state-by-state tracker that shows current adoption status.
- Run an eligibility verification on every patient scheduled for the next 30 days whose coverage runs through CHIP or Medicaid. Flag any patient whose immigration status falls into the affected categories. Your billing system or clearinghouse should be able to filter by payer type.
- Contact your state Medicaid office for redetermination guidance. CMS has required states to redetermine eligibility for all potentially affected enrollees by October 1. Your state may have specific instructions for providers on how to handle claims during the transition.
- Update your front desk workflow. Staff who handle insurance verification at check-in need to know that a patient who was covered last month may not be covered this month. Build a verification step into the scheduling process for CHIP patients, not just at the time of the visit.
- Prepare a self-pay or sliding scale option for patients who lose coverage. Well-child visits, immunizations, and routine pediatric care do not stop because coverage changes. Having a financial pathway ready prevents cancellations and no-shows that compound the revenue loss.
- Review your claim submission queue for any pending CHIP claims with dates of service on or after October 1. Claims submitted for patients who are no longer eligible will deny. Catching them before submission saves the rework.
When a significant portion of your patient panel changes insurance status overnight, the billing errors compound fast: eligibility denials, claim rejections, and unresolved patient balances. A billing partner with pediatric experience can set up eligibility verification workflows, manage the transition claims, and prevent the revenue leak before it starts. Get matched with a vetted pediatric billing company, free.
Common Billing Mistakes During Coverage Transitions
Providers often come to us after a coverage change has already created weeks of billing problems. The same mistakes show up every time, and they are all preventable.
- Submitting claims to a payer that no longer covers the patient. If a child lost CHIP eligibility on October 1, any claim with a date of service on or after that date submitted to the CHIP payer will deny. The fix is to verify coverage before every visit, not after.
- Failing to bill the correct payer when ICHIA applies. In states with ICHIA, the child may still have coverage, but the billing may route through a different state program or funding source. Confirm the correct payer ID with your state Medicaid office rather than assuming the existing CHIP payer ID still works.
- Not offering a self-pay pathway. A child who loses CHIP coverage still needs well-child visits and immunizations. Practices that have no self-pay or sliding scale process lose the patient entirely, not just the payer reimbursement. Keeping the patient in care and collecting a reduced fee is better than a no-show and zero revenue.
- Ignoring the 5-year bar for LPRs who retain eligibility. Lawful permanent residents remain eligible for CHIP after October 1, but many are still subject to the 5-year waiting period before coverage begins. Practices billing for LPR children who have not yet cleared the 5-year bar will see denials unless their state has waived the waiting period under ICHIA.
- Continuing to use outdated eligibility information. A patient’s coverage status verified in August 2026 is not reliable for an October 2026 visit. Coverage transitions require re-verification at every visit during the transition period.
Revenue Impact for Pediatric Practices
In our experience matching pediatric providers with billing partners, coverage transitions like this one create two kinds of revenue impact. The first is direct: claims that deny because the patient is no longer eligible, appointments that cancel because families learn they lost coverage, and outstanding patient balances that go uncollected because the family has no ability to pay. The second is indirect: staff time spent on eligibility calls, claim rework, and patient financial counseling that pulls resources away from other billing operations.
The practices that handle these transitions best are the ones that treat the coverage change as a billing operations event, not just a policy update. That means staffing the eligibility verification process, building a self-pay workflow before it is needed, and working with a billing partner that can manage the claim volume during the transition period. The well-child visit codes that drive most pediatric revenue, including CPT 99392 for established patient preventive visits, do not change. The patients still need the visits. The question is whether the practice can collect on them, and that depends entirely on how the billing is set up before October 1.
Frequently Asked Questions
The 2025 reconciliation law restricts federal CHIP eligibility to lawful permanent residents, Cuban and Haitian entrants, and COFA nationals starting October 1, 2026. Refugees, asylees, parolees, trafficking victims, and other lawfully present immigrant children lose eligibility on that date unless their state has adopted the ICHIA coverage option.
No. Children who are U.S. citizens remain eligible for CHIP and Medicaid based on their own citizenship status, regardless of their parents’ immigration status. The eligibility restriction applies only to the child’s own immigration category, not to the parent’s.
The Immigrant Children’s Health Improvement Act (ICHIA) is a federal option that allows states to extend Medicaid and CHIP coverage to a broader group of lawfully residing children. States that have adopted ICHIA can continue covering children who would otherwise lose eligibility under the October 2026 restrictions. Roughly half of states have adopted ICHIA for children as of September 2026.
Run eligibility verification on all CHIP patients scheduled in the next 30 days. Check whether your state adopted ICHIA for children. Contact your state Medicaid office for redetermination guidance. Update front desk workflows to verify coverage at scheduling, not just at check-in. Prepare a self-pay or sliding scale option for families who lose coverage.
No. The CPT codes for well-child and preventive visits, such as CPT 99392 for established patient preventive visits, do not change. What changes is whether the visit is covered by CHIP or whether the patient is now uninsured and the practice must collect through self-pay or another pathway.
The Kaiser Family Foundation estimates the eligibility restrictions are expected to result in approximately 100,000 individuals becoming uninsured by 2034. The near-term impact will be concentrated in states with large immigrant populations that have not adopted the ICHIA option for children.
Next Steps
For a breakdown of the well-child visit billing codes most affected by this coverage change, see our guide to CPT code 99392 for established patient preventive visits.
To understand how pediatric billing services can help manage eligibility verification and claim transitions during coverage changes, visit the Pediatrician Billers homepage.
If your practice serves a significant immigrant patient population and needs billing support through the October 2026 transition, get matched with a billing company that specializes in pediatric billing.
Coverage transitions hit pediatric practices harder than most specialties because well-child visits, immunizations, and developmental screenings are scheduled months in advance and cannot wait for billing to catch up. A billing partner with pediatric experience manages eligibility verification, handles the claim transitions, and keeps your revenue cycle running while the coverage landscape shifts. Pediatrician Billers matches your practice with vetted billing companies that specialize in pediatrics. Over 2,000 providers matched nationwide, rates starting at 6%, and the service is 100% free.
