Health insurance denied a claim or care in Illinois: what to do
Checked against official sources: Oct 31, 2026
In Illinois:
- Internal appeal to your plan
- State law does not set a longer time to file.
- Ask for external review
- You must file within 4 months after you receive the denial notice.
- Do this now
- Read the denial notice. Find the reason and denial code, the deadline to appeal, how to appeal, and who handles external review.
If your health plan refuses to approve or pay for care, it must tell you why in writing, and you can appeal. Most job-based and individual plans have two steps: an internal appeal to the plan (at least 180 days to file) and then an independent external review, whose decision the plan must follow (at least 4 months to ask).
More about this
Medicaid uses a state fair hearing, and Medicare has its own appeal levels. If waiting could seriously harm your health, ask for a fast (expedited) decision.
General legal information, not legal advice. RobinClaim is not a law firm.
Build your plan
Choose your state and answer 4 quick questions. The plan below changes as you answer: steps that don't fit your answers are hidden, and your state's deadlines appear. Your answers stay in the page address.
Your plan for Illinois
Do now
Ask your doctor to tell the plan the case is urgent and to request an expedited (fast) appeal. If your doctor says it's urgent, the plan must treat it as urgent.
Why: Urgent appeals must be decided within 72 hours, and you can ask for an expedited external review at the same time.
Read the denial notice. Find the reason and denial code, the deadline to appeal, how to appeal, and who handles external review.
Why: The notice must include these. The deadline and the reason decide your next step.
Appeal before the date the cut takes effect, and say you want the treatment to continue during the appeal.
Why: If a plan wants to cut or stop an approved ongoing treatment, it must tell you in advance so you can appeal first, and coverage must continue while the appeal is pending.
If Medicaid or your Medicaid plan is cutting or stopping a service you get now, appeal (or ask for a fair hearing) and ask to keep your services during the appeal, by the deadline on your notice. For a Medicaid plan appeal, federal rules give you until 10 days after the plan sends the notice or the date the change takes effect, whichever is later; some states give more time.
Why: Asking in time generally keeps the service going until the decision. If you lose, the state or plan may try to recover the cost.
Ask your Medicaid plan for an expedited (fast) appeal, and ask your doctor to support it. If you also need a state fair hearing, you can ask for an expedited hearing in the same request.
Why: An expedited plan appeal must be decided within 72 hours (the plan can extend it by up to 14 days in some cases).
Follow the instructions in your Medicare notice for the first appeal level, and call your State Health Insurance Assistance Program (SHIP) for free help (shiphelp.org).
Why: Medicare and Medicare Advantage have their own appeal process with up to 5 levels; each decision letter tells you how to go to the next level.
Nothing extra here for your answers.
This week
Ask the plan, in writing, for a free copy of your claim file and any rule or guideline it used. You can also ask for the diagnosis and treatment codes.
Why: These are free, and asking for codes doesn't count as starting your appeal.
File the internal appeal in writing before the deadline (federal rules give at least 180 days from when you received the denial). Include a letter from your doctor explaining why you need the care. Keep copies of everything.
Why: The plan must decide within 72 hours for urgent care, 30 days for care you haven't had yet and 60 days for care you already got.
Find out whether your job-based plan is self-insured: check the plan booklet (summary plan description) or ask HR.
Why: Self-insured plans are generally overseen by the U.S. Department of Labor (EBSA), not your state insurance department, and generally use the federal external review rules.
If you're in a Medicaid managed care plan, appeal to the plan within 60 calendar days of its notice (orally or in writing).
Why: The plan must decide within 30 days, or 72 hours if expedited (it can extend by up to 14 days in some cases). If it says no or misses its deadline, you can ask for a state fair hearing.
If the denial came from your state Medicaid agency itself (not a managed care plan), ask for a state fair hearing before your state's deadline (at most 90 days from the notice; check your notice). You can ask for an expedited hearing in the same request.
Why: Your notice lists the ways your state accepts hearing requests.
Call your state's consumer assistance program or insurance department for free help with the appeal.
Why: Many states have a Consumer Assistance Program that helps people with health insurance problems, including appeals.
Nothing extra here for your answers.
If it's not resolved
Ask for an independent external review before the deadline (at least 4 months under federal rules; your state may allow more). Your final denial letter says where to send it.
Why: The reviewer must decide within 45 days (72 hours if urgent), and the plan must follow the decision. The federal process is free; a state or plan reviewer can charge at most $25.
If the plan still says no or breaks the rules, file a complaint with your state insurance department (insured plans) or the U.S. Department of Labor's EBSA (self-insured job-based plans).
Why: Regulators can look into whether the plan followed the law.
If your job-based plan's final denial stands, the notice must tell you about your right to sue under ERISA. Court deadlines can be short, so get legal advice quickly.
Why: Plans can't require more than two appeal levels before you can sue.
If you lose the Medicaid plan appeal, ask for a state fair hearing within the time your state allows (90 to 120 days from the plan's decision).
Why: At the hearing you can see your case file, bring witnesses and question the evidence.
If you're being billed while you appeal, ask the provider to hold the bill until the appeal is decided. For a surprise out-of-network bill, call the No Surprises Help Desk at 1-800-985-3059.
Why: A denial about surprise-billing protections can also go to external review.
Keep a record: denial letters, explanations of benefits, your appeals, and notes of every call (date, time, name and title, what was said). Send copies, keep originals.
Why: A clear record helps at every level of appeal.
Nothing extra here for your answers.
Deadlines
Internal appeal to your plan (job-based or individual plan)
General rule: At least 180 days from when you receive the denial (federal minimum; your plan may allow more). See state for any state rule.
In Illinois:
State law does not set a longer time to file. Use the deadline on your denial notice; federal rules give at least 180 days for most plans.
Law: 215 ILCS 134/45(b)-(e) (Managed Care Reform and Patient Rights Act) · checked Oct 2026 · Official source · From Health Appeal Map: Illinois
Plan's decision on an internal appeal
General rule: 72 hours for urgent care; 30 days for care not yet received; 60 days for care already received (29 CFR 2560.503-1(i))
Ask for external review
General rule: At least 4 months after you receive the final denial (federal process and minimum for state programs); see state
In Illinois:
You must file within 4 months after you receive the denial notice. State law gives no extension.
Law: 215 ILCS 180/20, 25, 30, 35, 40, 42, 45, 70 · checked Oct 2026 · Official source · From Health Appeal Map: Illinois
Medicaid managed care plan appeal
General rule: 60 calendar days from the date on the plan's notice (42 CFR 438.402(c)(2)(ii))
Medicaid state fair hearing
General rule: Set by your state, at most 90 days from the notice (90-120 days after a managed care plan's appeal decision); see state
In Illinois:
- Hearing days
- 60 days
- Hearing days from
- The date of the Department's notice of the action
Law: 89 Ill. Adm. Code 14.10(f)(1); 89 Ill. Adm. Code 104.1, 104.10 · checked Oct 2026 · Official source · From Health Appeal Map: Illinois
Keep Medicaid services during the appeal
General rule: Medicaid plan appeal: ask by the later of 10 days after the plan sends the notice or the date the change takes effect (42 CFR 438.420). State agency action: ask for a hearing before the change takes effect (42 CFR 431.230, 431.231). Some states give more time; see state
In Illinois:
Your benefits continue at the previous level if you file your appeal by the later of the date of the change or the 10th calendar day after the date of the notice. If that day is not a workday, an appeal received or postmarked by the next workday counts. Mark "I want my benefits to continue" on the appeal form. If you lose, you may have to pay back the benefits.
Law: 89 Ill. Adm. Code 14.10(f)(1); 89 Ill. Adm. Code 104.1, 104.10 · checked Oct 2026 · Official source · From Health Appeal Map: Illinois
Key facts for Illinois
Health Appeal Map
- Appeal to your plan
- At least 180 days from receipt of the denial (federal rule)
- Outside review
- 4 months
- Deadline to ask for a Medicaid hearing
- 60 days
- Medicaid health plan: appeal to the plan first
- 60 days
Health Appeal Map: Illinois · checked Oct 2026
Documents to gather
- The denial letter and any explanation of benefits (EOB)
- Your insurance card and plan booklet (summary plan description)
- The claim file and guidelines you requested from the plan
- A letter from your doctor supporting the care
- Copies of your appeal and proof of when you sent it
- Notes of every call with the plan
- For Medicaid: the notice with its date and your case number
Where to go
- StateYour state's health appeal rules, insurance regulator and consumer assistance program
Deadlines, who runs external review, how to complain and free help in your state.
Health Appeal Map: Illinois
- FederalHealthCare.gov: appeal an insurance company decision
Plain-language federal rules for internal appeals and external review.
- FederalU.S. Department of Labor, EBSA (Ask EBSA)
Job-based plans, especially self-insured plans. Call 1-866-444-3272.
- FederalCMS: state consumer assistance programs and insurance departments
To find your state's free consumer help program.
- FederalMedicare appeals
Medicare or Medicare Advantage denials.
- FederalFree legal aid (Legal Services Corporation finder)
Medicaid hearings and serious denials, if you have a low income.
Costs
Internal appeals, Medicaid fair hearings and the federal external review process are free. A state program or a plan's contracted reviewer may charge up to $25 for an external review. Requesting your claim file and plan criteria is free.
Talk to a lawyer if
- The denied care is urgent or very expensive and the plan upheld the denial
- Your job-based plan's final denial says you can sue under ERISA
- Your coverage was cancelled back to its start date (rescission)
- Medicaid is ending your coverage or a service and you need to keep it during the appeal
- The plan missed its deadlines or won't give you your claim file
Free help
Many states have a Consumer Assistance Program that helps with health insurance problems, including appeals; find it through CMS (cms.gov/cciio/resources/consumer-assistance-grants) or your state page. For job-based plans, EBSA benefits advisors help for free (1-866-444-3272). For Medicare, your State Health Insurance Assistance Program (SHIP) gives free counseling (shiphelp.org). For Medicaid hearings, free legal aid can help: find it through the Legal Services Corporation (lsc.gov/about-lsc/what-legal-aid/i-need-legal-help) or LawHelp.org (lawhelp.org).
Guides for your state
Guides for every state
- Free appeal letter to your plan
- Free letter: request your claim file
- Free external review request
- Appeal deadline calculator
- Medicaid fair hearing request
- Medicaid plan appeal letter
- Guide: urgent (expedited) appeals
- Guide: self-funded employer plans
- Guide: internal appeal vs external review
- Guide: Medicaid fair hearings and keeping benefits
Questions
Internal appeal to your plan in Illinois: what is the rule?
State law does not set a longer time to file. Use the deadline on your denial notice; federal rules give at least 180 days for most plans. (215 ILCS 134/45(b)-(e) (Managed Care Reform and Patient Rights Act))
Plan's decision on an internal appeal: what is the rule?
72 hours for urgent care; 30 days for care not yet received; 60 days for care already received (29 CFR 2560.503-1(i))
Ask for external review in Illinois: what is the rule?
You must file within 4 months after you receive the denial notice. State law gives no extension. (215 ILCS 180/20, 25, 30, 35, 40, 42, 45, 70)
Medicaid managed care plan appeal: what is the rule?
60 calendar days from the date on the plan's notice (42 CFR 438.402(c)(2)(ii))
Medicaid state fair hearing in Illinois: what is the rule?
Hearing days: 60 days Hearing days from: The date of the Department's notice of the action (89 Ill. Adm. Code 14.10(f)(1); 89 Ill. Adm. Code 104.1, 104.10)
Keep Medicaid services during the appeal in Illinois: what is the rule?
Your benefits continue at the previous level if you file your appeal by the later of the date of the change or the 10th calendar day after the date of the notice. If that day is not a workday, an appeal received or postmarked by the next workday counts. Mark "I want my benefits to continue" on the appeal form. If you lose, you may have to pay back the benefits. (89 Ill. Adm. Code 14.10(f)(1); 89 Ill. Adm. Code 104.1, 104.10)
When should I talk to a lawyer?
The denied care is urgent or very expensive and the plan upheld the denial; Your job-based plan's final denial says you can sue under ERISA; Your coverage was cancelled back to its start date (rescission); Medicaid is ending your coverage or a service and you need to keep it during the appeal; The plan missed its deadlines or won't give you your claim file.
How much does it cost?
Internal appeals, Medicaid fair hearings and the federal external review process are free. A state program or a plan's contracted reviewer may charge up to $25 for an external review. Requesting your claim file and plan criteria is free.
Plans by state
Open the plan with one state's rules filled in:
Sources
- HealthCare.gov: Internal appeals
- HealthCare.gov: External review
- 29 CFR 2560.503-1 Claims procedure (ERISA plans) (eCFR)
- 45 CFR 147.136 Internal claims and appeals and external review (eCFR)
- 42 CFR 431.221 Medicaid fair hearing request (eCFR)
- 42 CFR 438.402 Medicaid managed care appeals (eCFR)
- 42 CFR 438.408 Resolution of appeals (eCFR)
- 42 CFR 438.420 Continuation of benefits (eCFR)
- CMS CCIIO: State external review processes
- CMS CCIIO: Consumer assistance programs
- U.S. Department of Labor: Ask EBSA
- Medicare.gov: Appeals
- CMS: Medical bill rights (No Surprises Act)
- Legal Services Corporation: I need legal help
Plan checked Oct 2026. Independently fact-checked 2026-10-31.
This plan is general legal information, not legal advice. RobinClaim is not a law firm. Laws and deadlines change and have exceptions: check with the official source or a lawyer or legal aid office about your own case. How we research.