If Medicaid denied a rehab service, you can often challenge the decision. The right path depends on what was denied. It could be your eligibility, a treatment authorization, a provider bill, or network access.
Start by reading the denial notice. It tells you who made the decision and why. It also shows how to appeal and the deadline. Rules vary by state and plan. Check the exact steps for your situation.
While you review the notice, you can verify your Medicaid benefits. This helps you see what is covered. We are a treatment-directory publisher, not a treatment provider or legal representative. This guide offers general navigation, not legal advice.
A coverage appeal is separate from urgent care. If someone is in immediate danger, call 911 or go to the nearest emergency room. For behavioral-health crisis support, call or text 988.
Medicaid Denied Rehab Appeal: Identify What Was Denied
First, find out what was denied. The type of denial changes who made the decision. It also changes how you appeal. Use the table below to sort your situation.
| Denial Type | What the Decision Concerns | Who Made It | Contact First | What to Verify |
|---|---|---|---|---|
| Eligibility denial | Your right to get Medicaid benefits | State Medicaid agency | State Medicaid office or caseworker | Notice date, code, reason, and appeal steps[1] |
| Service or prior-authorization denial | Approval for specific rehab care | Managed care plan or state agency | Provider or plan member services line | Dates, code, reason, and appeal steps[1] |
| Provider-claim denial | Payment for a billed service | Managed care plan or state agency | Provider’s billing office | If the claim needs fixing or a challenge[1] |
| Network-access issue | Access to an in-network provider | Managed care plan | Plan member services line or provider | If the plan met federal access rules[2] |
A claim denial is about paying for a done service. An authorization denial is about approving future care. These are different issues. If a claim was denied, ask your provider what to do next. Ask if they need to fix the bill or fight the denial for you.[1]
Nursing-home Medicaid rules do not cover rehab. Do not use nursing-home guides for your case. Follow the appeal steps on your specific denial notice.[1]
What to Do First After a Medicaid Rehab Denial
Act fast. The deadlines below are for Medicaid managed-care plan appeals. Other review routes, like state fair hearings, may have different rules. Check your notice. Confirm the steps for your state and plan.
60 days
to request an appeal after the adverse-benefit notice[3]
30 days
for a standard appeal resolution from the day the plan receives it[3]
72 hours
for an expedited appeal resolution[3]
These are federal standards for managed-care plans. They are not universal deadlines for every Medicaid review. Your notice has the exact dates for your case.
- Save the complete notice. Keep the letter and envelope. Or record the date you got it. This shows when your clock started.
- Find who made the decision. Was it your managed-care plan or your state agency? Note the denial type, like eligibility or authorization.
- Call the number on the notice. Ask for someone who handles appeals. Say you are appealing a denial of rehab services.
- Ask how to file and about speed. Ask where to send your appeal and the final deadline. Ask if you can get an expedited review if waiting hurts your care access. Ask if a continued-service request is available while you wait.
- Send it and keep records. File your appeal as they tell you to. Keep copies of all papers. Write down who you talked to, when, and any reference numbers.
You may want to look at programs that accept Medicaid while you wait for your appeal result. Before you commit to a program, our list of questions for free rehab helps you ask the right things.
How to Write a Medicaid Rehab Appeal Letter
Start your letter with a clear, plain statement. You can use this opening: “I am appealing the decision to deny or limit the addiction-treatment service described in this notice. Please review the decision and the attached information.”

Build your letter around four main points:
- The specific decision you are challenging.
- The exact treatment or service you asked for.
- Why the denial reason should be looked at again.
- The specific action you want the plan to take.
If your case involves a clinical recommendation, note that experts often use the ASAM Criteria. This tool uses a multidimensional assessment to guide substance-use-disorder treatment and level-of-care choices.[4] Adding these records can show why you need this level of care.
Provider Claim Denials
If the denial is about a bill from a provider, do not assume you must appeal it yourself. Call the billing provider first. Ask if they need to fix the claim or if they will handle the appeal themselves. Often, the provider manages these issues directly.
Gather Your Evidence
Collect all relevant papers before you send anything. You have the right to check your Medicaid record at a reasonable time before a hearing date.[1] Use this time to make sure your file matches what you send. Always mail copies of your documents. Keep the originals for yourself.
Before You Send the Appeal
Your ticks are saved on this device only.
If you are unsure how to proceed, call your plan or state Medicaid agency. You can also contact a legal-aid group for help. This guide gives practical steps but is not legal advice.
Appeal Deadlines, Continued Care, and Coverage Length
Managing an appeal involves several moving parts. You must track the date you received the denial notice. You also need to know the deadline to file your appeal. Check for any dates related to continuing your current care. These timelines vary by state and plan. Always check the specific instructions on your notice.
Day 0
Receive and date the denial notice. Mark the date you got it in your records.
Immediately
Confirm the exact deadline to file a plan appeal or request a state fair hearing. Do not assume these dates are the same.
Before service changes
Ask your provider or plan if you can request continued services while the appeal is pending.
By the deadline
File your appeal through the correct route and keep proof of submission.
After decision
Review the new decision notice carefully for any further review deadlines.
This sequence is a navigation aid, not a universal state calendar. Your specific notice and state rules control your next steps.
Fair Hearing Timelines
State fair-hearing deadlines are not necessarily identical to plan-appeal deadlines. Federal rules allow a state Medicaid agency to give you a reasonable time period, up to 90 days, to request a fair hearing.[5] Once a request is made, the state generally must take final administrative action within 90 days of receiving it.[1] There are regulatory exceptions and allowable extensions that can affect this timeline. Because these clocks run separately from internal plan appeals, waiting for one process to finish before checking the next deadline can cause you to miss critical windows.
Continuing Your Care
If your managed-care plan reduces or terminates previously authorized treatment, you may have the right to have benefits continue while your appeal is resolved.[6] This is not guaranteed for every situation; it applies in specific managed-care cases and requires you to follow certain request procedures.[6] You may also face requirements regarding cost repayment if services continue but are later found not medically necessary.[6] Ask your provider or plan promptly whether your case qualifies for this protection.
How Long Does Coverage Last?
Medicaid does not promise a universal number of days for addiction treatment coverage. The length of covered care depends on several factors:
- The specific service being provided (such as outpatient therapy versus residential care).
- Your state’s specific coverage rules for that service.
- A medical-necessity review by your provider or plan.
- The scope of your authorization letter.
Winning an appeal may restore access to care, but it does not automatically extend coverage beyond what is medically necessary or approved by your state program. Talk with your treatment team about how long they believe you need services and ensure that documentation supports that need during any reviews.
Eligibility Denials, Reapplying, and Colorado Medicaid
First, know which denial you have. An eligibility denial means you do not qualify for Medicaid. A service denial means you are enrolled, but the plan refused to pay for a specific rehab service. These need different steps.

If your life has changed, reapplying may help. But it does not replace checking the appeal deadline on your notice. Always check that date.
Income rules vary by group. Medicaid uses modified adjusted gross income (MAGI) for many people.[7] Others, like those with disabilities or blindness, use different rules.[7] There is no single income limit for everyone. Check your state’s website for current details.
In Colorado, financial rules can vary within the state.[8] No single dollar amount disqualifies everyone. Your household size and program type matter. You can view treatment centers in Colorado for local options. This list is not official eligibility advice.
Your agency or plan decides what is covered. This depends on your state’s benefit rules.[9]
Which Medicaid Decision Are You Challenging?
This self-check helps you find the right path. It is not a diagnosis and does not guarantee coverage.
If Treatment Is Urgent or the Appeal Is Denied
Your health comes first. A coverage dispute should never delay care. If you are in immediate danger, call 911 or go to the nearest emergency room now. For suicidal thoughts or severe distress, call or text 988. This connects you to the 988 Suicide & Crisis Lifeline.[10] A behavioral-health crisis is not an insurance appeal. Do not wait for a paperwork decision to get help.
Keep Care and Disputes Separate
Even if your appeal fails, you have options. Call your Medicaid plan and state agency. Ask about other review options and how to keep getting care. Check your final notice for any next steps and deadlines.
If your current program is not covered, ask about these choices:
- An in-network provider that takes your plan
- A different covered level of care or service
- State-funded treatment options that may fill coverage gaps
Our guide to state-funded treatment options explains these resources. Never stop treatment because of a billing issue. Talk with your doctor or therapist about staying safe while you sort this out.
Get Free Referral Help
If you are unsure where to turn, try the SAMHSA National Helpline. It offers free, confidential treatment-referral information.[11] This is not a sales pitch. It helps you find local support and mental health services. You can call 1-800-662-4357 or text your zip code to HELP4U (435748) at any time.[11]
Medicaid Addiction-Treatment Appeals Are Not Medicare IRF Appeals
Medicaid and Medicare handle addiction treatment differently. Mixing up the rules can cause delays. It can also lead to a denial.

| Program | What the decision concerns | Which rules apply | Where to check next |
|---|---|---|---|
| Medicaid substance-use treatment | Eligibility, authorization for rehab services, or provider claims | State Medicaid plans and federal guidelines for substance use disorder treatment | Your state Medicaid office or your insurance ID card |
| Medicare inpatient rehabilitation facility (IRF) care | Admission to a specialized rehab facility for physical or cognitive recovery | Medicare IRF admission and medical-necessity criteria[12] | Your Medicare notice and your provider |
Medicare has a 60% rule. This rule is for facility classification.[13] It is not a limit on Medicaid rehab stays.
Medicare IRF coverage has strict rules. Your provider must certify you need intensive rehab. They must also confirm you need physician oversight.[12] Intensive therapy usually means 3 hours a day, 5 days a week. Or it means 15 hours over 7 days.[14] These therapy hours do not apply to Medicaid addiction appeals.
If you have Medicare, check your specific coverage notice. Talk with your provider about your case. You can read our Medicare coverage details for more info. If you are unsure which program covers you, check your ID card. Call the number on the back for help.
Frequently Asked Questions
Should I appeal a Medicaid denial or reapply?
Check your denial notice first. See if it is about your eligibility or a treatment service. Note the deadline to file an appeal. You can apply for Medicaid at any time of year.[15] You do not have to wait for an annual period. Reapplying is an option if your situation changes. But do not miss the deadline to challenge the current decision.
What if my Medicaid managed-care plan denies my appeal?
Read the plan's decision notice carefully. Look for the next review route and its deadline. Federal rules allow a state fair hearing after a denied appeal.[16] Check with your local Medicaid office for state-specific steps.
How long will Medicaid cover rehab for a child or teen?
There is no fixed number of days for every member. Rules vary by service and state. For people under 21, EPSDT applies. States must cover medically necessary services.[17] Ask your provider how this fits your child's needs. Also check your state's coverage process.
How much income disqualifies someone from Medicaid in Colorado?
There is no single income limit for all groups. Household size and eligibility type matter. For adults in the expansion group, the limit is often 138% of the federal poverty level.[18] Confirm all rules with the state agency. Use current guidance to check your status.
How long can Medicare cover an inpatient rehabilitation facility stay?
The IRF 60% rule does not set a stay limit. Medicare Part A covers up to 90 inpatient days per benefit period.[19] It also offers 60 lifetime reserve days. Coverage depends on your eligibility and medical needs. Check these requirements with your provider.