What to Do When Insurance Denies Your Medication?

When your insurance company denies a medication, you have the right to fight the decision, and the steps for what to do when insurance denies your medication follow a clear order: read the denial notice for the reason and the deadline, ask your prescriber to request a formulary or tiering exception, file an internal appeal if that fails, and escalate to an independent external review if the insurer still refuses. Federal law gives most people at least 180 days to file an internal appeal, and in many cases your insurer cannot cut off an ongoing prescription while you appeal.¹

Start With the Denial Notice

Every denial comes with a written explanation, and reading it carefully is the first move. The notice tells you the specific reason the medication was rejected and which plan provisions the insurer relied on. Common reasons include formulary exclusions (the drug isn’t on the plan’s approved list), missing prior authorization, step therapy requirements (the insurer wants you to try a cheaper drug first), or a determination that the medication isn’t medically necessary. The notice also lists the insurer’s appeals contact information and the instructions for challenging the decision.

The deadlines matter more than anything else on the page. Under the Affordable Care Act, most health plans give you at least 180 days from the date of the written denial to file an internal appeal.¹ Medicare Part D enrollees have a shorter 60-day window at each appeal level.² Miss these deadlines and you can lose the right to appeal entirely.

Sometimes the problem has nothing to do with the drug itself. Your doctor’s office may have submitted incomplete paperwork, used the wrong diagnosis code, or left out clinical notes proving medical necessity. Before launching a formal appeal, call the insurer and your provider’s office to find out whether the denial is administrative. Resubmitting corrected paperwork can resolve the issue in days instead of weeks.

Ask Your Doctor to Request an Exception

Before filing an appeal, ask your prescriber to request an exception. A formulary exception asks the plan to cover a drug that isn’t on its approved list. A tiering exception asks the plan to charge you the lower copay that applies to preferred drugs rather than the higher rate for your medication’s current tier. Both are formal requests the plan is required to process.

Your doctor drives this. The prescriber must submit a supporting statement explaining why the formulary alternatives won’t work for you. For a formulary exception, that means showing that every covered drug on the formulary would be less effective for your condition or would cause adverse effects. For a tiering exception, the prescriber must show that preferred-tier alternatives would be less effective or harmful.³ The statement can be given verbally, though the plan may require written follow-up.

Exception requests move faster than formal appeals. Under Medicare Part D, plans must respond to a standard exception request within 72 hours of receiving the prescriber’s statement, and within 24 hours for an expedited request.³ Many commercial and marketplace plans follow similar timelines. If the exception is denied, the written decision will include instructions for filing a formal appeal, so trying this route first costs you nothing.

File an Internal Appeal

If the exception fails or doesn’t fit your situation, filing an internal appeal is the next step. This is where you formally ask the insurer to reconsider, and it’s required before you can escalate to an outside reviewer. The insurer must assign your appeal to a reviewer who had no involvement in the original denial.⁴

Submit a written request using the insurer’s designated form or a letter that includes your policy number, the denied medication, and a clear explanation of why you need it. Attach everything your doctor can provide: clinical notes, lab results, imaging, treatment history, and a letter of medical necessity. If your condition is rare or the medication is newer, include peer-reviewed studies or treatment guidelines from recognized medical organizations. A thick evidence file is harder for a reviewer to rubber-stamp.

Federal timelines require the insurer to complete its review within 30 days if you haven’t received the medication yet, and within 60 days for services already provided.¹ If waiting could seriously harm you, request an expedited appeal. Insurers must respond to expedited requests within 72 hours.⁴ If the appeal is approved, you’ll get written confirmation and the drug will be covered under your plan’s standard terms. If it’s denied, the notice must spell out the specific plan provisions used to uphold the decision.

Keep Getting Your Medication While You Appeal

This is the fact most people don’t know, and it changes how you handle a denial. Federal regulation requires health plans and insurers to provide continued coverage for an ongoing course of treatment while your appeal is pending. The plan cannot reduce or terminate benefits for treatment you’re already receiving without giving you advance notice and an opportunity for review.⁵ This applies to both group plans and individual health insurance coverage.

The practical effect: if you’ve been filling a prescription and your insurer suddenly denies continued coverage, you can demand that the medication stay covered while you appeal. When filing, explicitly reference this right and state that you are requesting continuation of benefits pending the outcome. If the insurer pushes back, this is exactly the kind of issue worth escalating to your state insurance department.

Take It to an External Review

If the internal appeal fails, you can take your case outside the insurance company. Federal law requires all health plans to offer an external review process when a denial is based on medical necessity, whether a treatment is appropriate, or whether a treatment is experimental.⁶ An independent review organization with no financial ties to your insurer evaluates the medical evidence and issues a binding decision.

File your external review request within four months of receiving the final internal appeal denial. You can submit online through the federal external review portal, by mail, or by fax. Standard cases must be decided within 45 days. Expedited cases involving urgent medical needs come back within 72 hours or less.⁷ If the reviewer sides with you, the insurer must cover the medication. If your health is at immediate risk, you can request an expedited external review at the same time you file the internal appeal instead of waiting for the internal process to finish.⁴

Some states run their own external review programs with protections beyond federal minimums, and some charge a small filing fee (typically $25 or less). Your final internal denial letter will tell you which external review process applies to your plan.

How to Pay for the Drug While You Sort Out Coverage

Appeals take time, and you may need the medication now. Several options can bridge the gap.

HSAs and FSAs

If you have a health savings account or flexible spending account, you can use those funds for prescribed medications your insurance won’t cover. The IRS defines qualified medical expenses broadly under Section 213(d), and prescription drugs not compensated by insurance fall within that definition.⁸ HSA withdrawals for qualified medical expenses are tax-free, which makes this one of the most efficient ways to pay while your appeal is pending.

Patient Assistance Programs

Many drug manufacturers run patient assistance programs that provide medications free or at reduced cost to people who can’t afford them. Eligibility usually depends on income and insurance status. NeedyMeds (needymeds.org) maintains a searchable database of these programs by drug name. Some programs also help with copayments for insured patients whose out-of-pocket costs are still prohibitive. If you’re on Medicare, note that manufacturer assistance generally does not count toward your Part D out-of-pocket spending.

Pharmacy Discount Cards

Programs like GoodRx and RxSaver negotiate lower cash prices and can sometimes beat your plan’s copay. The tradeoff: when you use a discount card instead of your insurance, what you pay generally does not count toward your annual deductible or out-of-pocket maximum. For a one-time bridge fill, the savings can be worth it. For an ongoing prescription, you’re effectively paying twice, once at the pharmacy and once in lost deductible credit.

The Medical Expense Tax Deduction

If you end up paying full price out of pocket, those costs count as deductible medical expenses on your federal return. You can deduct the portion of unreimbursed medical and dental expenses that exceeds 7.5% of your adjusted gross income, and you have to itemize on Schedule A to claim it.⁹ For an expensive specialty drug, this can provide real relief at filing time.

Special Rules for Medicare Part D

Medicare Part D has its own appeals ladder, and the timelines differ from commercial and marketplace plans. If your Part D plan denies a drug, start by requesting a redetermination from the plan. It has seven days to decide a standard drug appeal and 72 hours for an expedited one.²

If the plan upholds the denial, the case moves through up to four additional levels:

Independent Review Entity (Level 2). You have 60 days to request review. The IRE decides within seven days for standard requests and 72 hours for expedited ones.
Office of Medicare Hearings and Appeals (Level 3). Available if the drug costs at least $200 in 2026. You have 60 days to file. OMHA has 90 days for standard requests and 10 days for expedited ones.
Medicare Appeals Council (Level 4). You have 60 days to request review after an OMHA decision. The Council has 90 days for standard requests.
Federal District Court (Level 5). Available when the amount at issue is at least $1,960 in 2026. You have 60 days to file after a Council decision.²

At every level, the 60-day clock runs from the date printed on that level’s denial notice. Most Part D denials are resolved at Level 1 or Level 2, and the fast timelines mean you often get an answer within a week or two. If you need a drug urgently, request expedited processing and have your doctor’s office call the plan to reinforce the medical urgency.

Special Rules for Employer Plans

If your coverage comes through an employer, your plan is likely governed by the Employee Retirement Income Security Act, and that shapes your options. ERISA sets its own appeal standards and preempts most state insurance laws for self-insured employer plans, which means many of the extra consumer protections your state might offer don’t apply to your coverage.

ERISA plans must provide a full and fair review of denied claims, with internal appeal decisions typically due within 60 days. If you exhaust the internal process and still lose, your remedies in federal court are narrower than what state insurance law offers. You can sue to recover the denied benefit, but you generally cannot recover damages for delayed treatment, emotional distress, or bad-faith conduct. The only remedy is getting the benefit the plan already owed you.

ERISA also does not set a federal statute of limitations for suing after your appeals are exhausted. Plans write their own deadlines into the plan documents, typically between one and three years. Check your Summary Plan Description for this date. Because the fallback options are limited, getting the internal appeal right the first time matters more with an employer plan. If the medication is critical and the appeal involves complex medical evidence, consider talking with a benefits attorney before filing.

When to Call Your State Insurance Department

Every state has an insurance department that oversees health insurers and enforces consumer protection laws. If your insurer isn’t following procedure, is ignoring deadlines, or seems to be systematically denying a class of drugs, filing a complaint with the state can pressure the company in ways an individual appeal cannot. Submit copies of the denial notice, your appeal correspondence, and any responses from the insurer. The department reviews whether the insurer followed the rules and can require reassessment or impose penalties.

State regulators can’t always force approval of a specific medication, but they can fine insurers, require corrective action plans, and flag patterns of improper denials for enforcement. Complaints from multiple patients build the record that triggers those actions.

Many states also fund Consumer Assistance Programs that provide free help navigating denials and appeals. They can help you understand the denial, draft appeal letters, and coordinate documentation with your doctor’s office. Your state insurance department website will list whether a CAP is available in your area, and a CAP can file an appeal on your behalf.¹

If the Appeal Still Fails

If every appeal path is exhausted and coverage still isn’t coming, talk to your prescriber about therapeutic alternatives. Many denied drugs have covered counterparts with similar effectiveness, and switching to a formulary option can resolve the cost problem entirely. Your doctor can evaluate whether a covered alternative would work for your condition.

If covered alternatives genuinely won’t work because of past treatment failures or adverse reactions, document that history thoroughly. Insurers that use step therapy requirements are generally required to waive them when there’s evidence that the required steps already failed. Your prescriber’s documentation of those failures is what unlocks the waiver. Specialty pharmacies can sometimes offer lower pricing on drugs that remain uncovered, and compounded formulations may be an option when a standard covered drug isn’t suitable.

1
HealthCare.gov. Appealing a Health Plan Decision – Internal Appeals
2
Medicare. Appeals in a Medicare Drug Plan
3
Centers for Medicare & Medicaid Services. Exceptions
4
Centers for Medicare & Medicaid Services. How to Appeal a Decision About Your Health Insurance
5
eCFR. 45 CFR 147.136 – Internal Claims and Appeals and External Review Processes
6
Office of the Law Revision Counsel. 42 USC 300gg-19 – Appeals Process
7
HealthCare.gov. External Review
8
Internal Revenue Service. Publication 969 – Health Savings Accounts and Other Tax-Favored Health Plans
9
Internal Revenue Service. Publication 502 – Medical and Dental Expenses