ACA Medicaid Expansion Coverage Denied: How to Appeal

The Affordable Care Act (ACA) expanded Medicaid eligibility to cover nearly all adults up to 138% of the federal poverty level (FPL) in states that adopted expansion. More than 24 million Americans gained Medicaid coverage through expansion. But eligibility determinations can be complex, and denials — both initial and ongoing — do happen. If your Medicaid expansion application was denied, you have the right to appeal.

Which States Have Adopted Medicaid Expansion?

As of 2025, 40 states and the District of Columbia have adopted ACA Medicaid expansion. The 10 non-expansion states are primarily in the South and include Texas, Florida, Georgia, Alabama, Mississippi, South Carolina, Tennessee, Kansas, Wyoming, and Wisconsin (Wisconsin has a partial alternative program). If you live in a non-expansion state and do not qualify for traditional Medicaid, your primary option for subsidized coverage may be an ACA marketplace plan with premium tax credits.

Who Qualifies for ACA Medicaid Expansion

In expansion states, adults qualify based on income — not category (you no longer need to be a parent, pregnant, disabled, or elderly). Eligibility requirements:

• Income: At or below 138% of the federal poverty level ($20,783/year for an individual or $35,632/year for a family of 3 in 2025)
• Residency: U.S. citizen or qualifying immigration status, residing in the state
• Age: 19–64 years old (children are covered under separate CHIP or traditional Medicaid rules; adults 65+ are covered under traditional Medicare/Medicaid)

Common Reasons Medicaid Expansion Is Denied

Income too high: Your MAGI (Modified Adjusted Gross Income) exceeds 138% FPL. Note that MAGI for Medicaid excludes certain income types (child support received, Veterans benefits, some Social Security) and uses specific counting rules that may differ from your tax return.

Incorrect income calculation: The agency may have incorrectly counted income or used the wrong tax year. Medicaid uses projected current-year income, not necessarily last year's tax return.

Residency issue: The agency could not verify you are a resident of the state.

Immigration status: Expansion Medicaid requires lawful presence. Certain immigration statuses (e.g., DACA recipients) do not qualify in some states.

Administrative error: Document mismatch, data entry errors, or failure of the agency's automated eligibility system to correctly process your application.

Asset test: While ACA expansion Medicaid does not have an asset test, traditional Medicaid programs do. If the agency confused your coverage category, they may have incorrectly applied an asset test.

No response to a request for information: If the agency sent you a request for additional documentation and you did not respond in time, the application may have been denied.

Your Right to Appeal a Medicaid Denial

Federal regulations (42 CFR § 431.200) guarantee the right to appeal any adverse Medicaid eligibility determination. Steps:

Step 1: Request a Fair Hearing

File a hearing request with your state Medicaid agency within the deadline stated on your denial notice. Typical deadlines range from 30 to 90 days from the date of the notice; many states allow 90 days for eligibility denials.

You can usually request a hearing:

• In writing (mail or fax to the address on your notice)
• By phone (call the number on the notice)
• Online through your state's Medicaid portal
• Through your state's ACA marketplace (healthcare.gov or your state exchange)

Step 2: Request Expedited Hearing if Health Is at Risk

If you need medical care urgently and the denial is preventing you from accessing it, request an expedited hearing. States are required to process expedited hearings within a shorter timeframe (typically 3 business days for emergency situations, though this varies by state).

Step 3: Gather Documentation

Submit with your appeal:

• A copy of the denial notice
• Proof of income (recent pay stubs, employer letter, tax return, bank statements)
• Proof of residency (utility bill, lease, bank statement)
• Immigration documentation if applicable
• Social Security card or number
• Any other documents the denial notice said were missing or insufficient

Step 4: Present Your Case at the Hearing

Hearings are typically conducted by phone or in person before an impartial hearing officer. You can:

• Represent yourself or bring an advocate, family member, or attorney
• Present evidence and make arguments
• Ask questions of the agency's witnesses

Legal aid organizations in your state can often provide free representation for Medicaid eligibility hearings.

Step 5: Receive the Decision

The hearing officer must issue a written decision. If you win, the agency must enroll you and provide coverage retroactively to when you first applied. If you lose, you may be able to appeal to a state administrative court or file in state court.

While Your Appeal Is Pending

ACA Marketplace coverage: If your hearing is pending and you need coverage now, you may be eligible for a Special Enrollment Period (SEP) on the ACA marketplace. A Medicaid denial triggers an SEP, giving you 60 days to enroll in a marketplace plan with premium tax credits (if your income is above 100% FPL).

Emergency care: Regardless of coverage status, hospital emergency departments must treat you for emergency medical conditions under EMTALA (the Emergency Medical Treatment and Labor Act).

Fight Back With ClaimBack

Medicaid expansion denials are often based on administrative errors or income miscalculations that are correctable on appeal. ClaimBack helps you identify the grounds for your denial, organize your documentation, and prepare a clear, persuasive appeal.

Start your appeal with ClaimBack

Related Reading

• How to Write an Insurance Appeal Letter
• Internal vs. External Insurance Appeals Explained
• Common Reasons Insurance Claims Are Denied