How to Keep Medicaid When Your Child Turns 18 in Pennsylvania
If your child has been receiving Medicaid under Pennsylvania's Category PH-95 — the childhood program that covers therapies, nursing, and behavioral health services regardless of parental income — that eligibility terminates the day before their 18th birthday. There is no automatic conversion to adult Medicaid. Without advance filing, your child will have a coverage gap that leaves them without health insurance during the exact period when SSI redetermination, waiver applications, and adult service enrollment are all happening simultaneously.
The good news: most children who had PH-95 Medicaid will qualify for adult Medicaid, often with broader coverage than they'd get through a parent's employer plan. The bad news: the County Assistance Office won't make this happen for you. You need to understand which adult Medicaid category applies, file through COMPASS before the birthday, and follow up with the county to prevent processing delays from creating a gap.
Why PH-95 Terminates and What Replaces It
Category PH-95 exists because Pennsylvania disregards parental income and assets for children with severe disabilities. This means a family earning $200,000 can have a child on Medicaid if the child meets the disability criteria. At 18, the legal justification for that disregard disappears — the child is now an adult whose own income and assets determine eligibility.
The adult Medicaid categories that replace PH-95 depend on the young adult's specific situation:
| Situation | Adult Medicaid Category | Asset Limit | Income Limit |
|---|---|---|---|
| Approved for SSI | Automatic Medicaid enrollment | $2,000 (SSI standard) | $994/month SSI + $22.10 PA supplement (independent living) |
| Pending SSI, no other income | Apply through COMPASS for disability-based MA | $8,000 (Tier One) | $2,982/month (300% of SSI) |
| Earning income but still disabled | MAWD (Medical Assistance for Workers with Disabilities) | $10,000 | Less than $3,325/month countable; 5% premium applies |
| Enrolled in an HCBS waiver | Waiver-based Medicaid | Varies by waiver | Special income limit |
| DAC benefits (Disabled Adult Child) | SSI-related Medicaid with DAC disregard | $2,000 with disregard applied | Deemed SSI-eligible |
The most common path: the young adult's SSI application is approved (or continues after redetermination), and Pennsylvania Medicaid enrollment follows automatically. The gap risk comes when the SSI decision takes longer than the PH-95 termination — which is typical, since SSA processing often runs 3-6 months.
The Timeline You Need to Follow
6 Months Before the 18th Birthday
Contact the County Assistance Office. Call the local CAO (find yours at compass.state.pa.us) and ask about the PH-95 termination process. Specifically ask whether they plan to conduct an ex parte review — under federal renewal rules, the CAO must search electronic data sources to establish ongoing eligibility under an adult category before sending a termination notice. Some counties do this proactively; others don't without prompting.
Gather financial documentation. The adult Medicaid determination requires the young adult's own income and asset information — not the parents'. If the young adult has a bank account, ABLE account, or any income sources beyond SSI, document current balances.
3 Months Before the 18th Birthday
File the adult Medicaid application through COMPASS. Don't wait for the CAO's ex parte review. File a new application designating the young adult as the applicant (not a dependent on the parents' case). Select the disability-based Medical Assistance category. This application runs in parallel with whatever the CAO does on its end — filing early creates a documented application date and starts the application process while the child's existing coverage is still active.
File or confirm the SSI redetermination. If the SSA hasn't already sent the age-18 redetermination packet, call 1-800-772-1213 to confirm the timeline. The SSI decision directly affects which Medicaid category applies.
The Month of the 18th Birthday
Confirm the room-and-board agreement is in place. This affects SSI (preventing the one-third reduction for in-kind support and maintenance), which in turn affects Medicaid eligibility through the SSI-linked pathway. A written agreement between the young adult and the household establishing rent payments prevents SSA from reducing the benefit by approximately $331/month.
Check COMPASS for the application status. The CAO has 30 days to process a Medicaid application after receiving all required documentation. If the 30-day deadline passes without a decision, call the CAO and reference your filing date.
After the 18th Birthday
Monitor for the PH-95 termination notice. When the CAO sends the termination letter, it must include appeal rights. If the adult Medicaid application is still pending, do not assume adult coverage has begun: the childhood category is closing, so confirm the application's status with the CAO.
If SSI is approved: Medicaid enrollment is automatic in Pennsylvania. Confirm with the CAO that the Medicaid case converted.
If SSI is denied or pending: The COMPASS application you filed becomes the primary pathway. Follow up with the CAO on the disability-based MA determination using your child's own medical records.
Who This Approach Is For
- Parents of a disabled teenager currently on PH-95 Medicaid in Pennsylvania who need to ensure continuous health coverage through the 18th birthday transition
- Families where the young adult depends on Medicaid-funded therapies, medications, or in-home nursing that private insurance doesn't cover — or covers inadequately
- Parents who have been told "Medicaid will just continue" and want to verify that the administrative steps are actually happening
- Families where the SSI redetermination is taking longer than expected and the PH-95 termination date is approaching without a decision
- Parents whose child plans to work after 18 and needs to understand how MAWD keeps Medicaid active while allowing employment income
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Who This Approach Is NOT For
- Families in other states — PH-95 is Pennsylvania-specific; other states have different childhood Medicaid categories with different termination rules
- Young adults who never had Medicaid and are applying for the first time at 18 — the process is simpler since there's no category transition to manage
- Families seeking Medicaid for a young adult without a documented disability — the disability-based MA categories require medical evidence of impairment
Common Mistakes That Create Coverage Gaps
Assuming the CAO will handle everything. Federal ex parte review rules require the CAO to attempt an automatic eligibility determination before terminating coverage. In practice, some counties are better at this than others. Filing your own COMPASS application is a backstop that helps address a potential gap while the CAO processes the transition.
Waiting for the SSI decision before applying for Medicaid. The SSI decision and the Medicaid application are separate processes that can run simultaneously. If SSI is approved, the Medicaid application becomes moot (automatic enrollment). If SSI takes months, the Medicaid application helps address a potential coverage gap during the wait.
Not establishing the room-and-board agreement before 18. This seems unrelated to Medicaid, but it's connected: the SSA's in-kind support and maintenance reduction lowers the SSI benefit by approximately one-third ($331/month in 2026). A lower SSI benefit changes the income calculation for Medicaid eligibility and for waiver cost-sharing. The room-and-board agreement prevents the reduction, preserving the full benefit amount.
Choosing the wrong adult Medicaid category on COMPASS. Pennsylvania has multiple disability-based Medicaid categories with different income and asset limits. Tier One ($8,000 asset limit) applies to individuals with income at or below the special income limit ($2,982/month). Tier Two ($2,400 asset limit) applies above that threshold. Selecting the wrong tier delays processing while the CAO requests additional documentation.
The Full System for Managing the Transition
The Medicaid transition is one piece of a seven-agency process that includes SSI redetermination, ODP waiver applications, PUNS registration, Act 61 guardianship alternatives, ABLE account coordination, and room-and-board agreements. Each step affects the others — the SSI amount determines Medicaid eligibility, the Medicaid category affects waiver enrollment, and the waiver status changes the asset limit.
The Pennsylvania SSI at 18 & Adult Benefits Guide maps the entire sequence into a chronological action plan that connects these systems, with the specific financial thresholds, documentation checklists, and agency-specific procedures you need at each step. The Medicaid transition covered in this post is Chapter 4 of 13 — the full guide ensures you're not solving one piece while missing the others.
Frequently Asked Questions
Will my child lose Medicaid the day they turn 18?
Not the day of. PH-95 terminates the day before the 18th birthday, but the CAO must provide advance notice and conduct an ex parte review before closing the case. If you've filed a COMPASS application for adult Medicaid, the new application should be processing while the childhood category closes. The risk isn't losing Medicaid permanently — it's a gap between categories if the timing isn't managed.
What if my child is denied SSI at the age-18 redetermination?
An SSI denial doesn't automatically mean they lose Medicaid. Pennsylvania has disability-based Medicaid categories that don't require SSI eligibility. The COMPASS application you filed separately remains active. If the young adult meets the disability standard for Medicaid (which uses the same SSA definition but is determined independently by the CAO), they can have Medicaid without SSI. Additionally, you have 60 days to appeal the SSI denial through reconsideration.
Does MAWD work if my child earns above the SSI limit?
Yes — that's exactly what MAWD is designed for. Medical Assistance for Workers with Disabilities allows individuals with disabilities to earn above SSI limits and maintain full Medicaid coverage. The asset limit is $10,000, and the premium is 5% of countable income. MAWD is one of the best-kept secrets in the Pennsylvania transition — it removes the fear that employment will cost your child their health coverage.
Can my child be on both Medicaid and my employer's health insurance?
Yes. Medicaid can serve as secondary coverage, picking up copays, deductibles, and services that private insurance doesn't cover (like many waiver-funded supports). There's no rule requiring families to choose one or the other. However, Medicaid's coverage for disability-specific services is typically more comprehensive than most employer plans.
How long does the Medicaid application take to process?
The CAO has 30 days to process a Medicaid application after receiving all required documentation; disability determinations may take longer. In practice, processing times vary significantly by county. Filing early — ideally 3 months before the 18th birthday — gives you the maximum buffer against delays.
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