What to do if insurance keeps denying medication?

You can start the formal dispute process by checking guidelines on HealthCare.gov or reviewing actionable advice from GoodRx.

When your health insurance denies a prescription, you have a legal right to fight the decision. Do not pay out-of-pocket or give up right away.

Step 1: Find the Reason and Check for Errors

• Call your insurer: Ask why the drug was denied. Common reasons include missing paperwork, lack of prior authorization, step therapy rules, or off-formulary status.
• Fix simple mistakes: Check for typos in your name, birth date, diagnosis code, or prescriber information.

Step 2: Involve Your Doctor

• Request a peer-to-peer review: Ask your doctor to speak directly with the insurance medical director to explain why you need this specific drug.
• Get a Letter of Medical Necessity: Have your physician write a formal letter detailing your medical history, failed alternative treatments, and why this medication is critical for your health. Include clinical studies or medical guidelines if possible.

Step 3: File an Internal Appeal

• Review deadlines: Read your denial letter carefully to find out how many days you have to appeal (often 60 to 180 days).
• Submit the package: Send your denial letter, the doctor's letter of medical necessity, your medical records, and prescription history via certified mail or fax.
• Request expedited review: If delaying the drug puts your health in serious danger, ask for an urgent/expedited review, which must be answered within 72 hours. Standard reviews take up to 30 or 60 days.

Step 4: Request an External Review

• Go independent: If your internal appeal is denied, you have the right to an Independent External Review. An outside medical expert who does not work for your insurance company will review your case.
• Binding decision: If the independent reviewer overturns the denial, the insurance company is legally required to pay for the medication.

Because major health insurance companies vary vastly in size, total raw complaint numbers usually reflect market share rather than customer satisfaction. Large national providers like UnitedHealthcare and Elevance Health often record the highest absolute volume of total complaints filed with state insurance departments simply because they serve tens of millions more members than regional competitors.

To measure complaints accurately, regulatory bodies like the National Association of Insurance Commissioners (NAIC) use a complaint index ratio, which compares a company's share of complaints to its share of the market.

Key Insights on Health Insurance Complaints

• Total Volume vs. Ratio: Large insurers handle the highest absolute number of grievances due to sheer size, while smaller or specialized regional plans may have higher or lower proportional ratios.
• Common Grievances: Most consumer and provider complaints center on claim denials, delayed reimbursements, out-of-network billing surprises, and difficulties accessing specialized mental health care.
• Industry Sentiment: Case managers and patient advocates on platforms like Reddit express a consensus that massive nationwide payers like UnitedHealthcare and Aetna are frequently the most difficult to navigate regarding prior authorizations and claims.

You can review state-specific department of insurance portals—such as the New York Consumer Guide to Health Insurers—to see localized complaint ratios and upheld grievance percentages for carriers operating in your area.

Health insurance companies usually deny medication coverage because the drug is not on their approved list, requires special pre-approval, or violates cost-saving rules.

Common Reasons for Denial

• Not on the Formulary: The drug is non-formulary, meaning it is not on the insurance plan's list of covered medications. Plans can change these lists at any time.
• Prior Authorization Needed: The insurer requires Prior Authorization (approval) from your doctor before they will pay for the prescription.
• Step Therapy (Fail First): The plan requires you to try and fail cheaper, alternative or generic drugs before they will approve the more expensive medication your doctor prescribed.
• Generic Available: Your doctor prescribed a brand-name drug, but the insurance company only covers the generic version.
• Quantity or Dose Limits: The prescription exceeds the allowed dose, quantity, or time limit set by the insurer.
• Not Deemed Medically Necessary: The insurer decides the drug does not fit their definition of necessary treatment for your specific diagnosis.

What You Can Do Next

• Read the Denial Letter: Check your explanation of benefits or denial letter to find the exact reason for the rejection.
• Talk to Your Doctor: Ask your prescribing doctor to submit a Prior Authorization form or file a formulary exception with your insurer.
• File an Appeal: You have the legal right to request an internal appeal if your insurance company refuses to change their decision.

Doctors often recommend getting rid of or avoiding specific over-the-counter and routine medications because new evidence shows they are ineffective or carry unnecessary risks.

Based on recent medical guidance highlighted by physicians (such as recent recommendations featured by the Washington Post), here are 5 medications doctors frequently advise reconsidering or dropping from your medicine cabinet:

1. Oral Phenylephrine

• What it is: A common oral decongestant found in many over-the-counter cold, flu, and sinus products (like certain versions of Sudafed PE or DayQuil).
• Why doctors say to avoid it: The FDA determined that oral phenylephrine is completely ineffective as a nasal decongestant.
• What to do instead: If you need a real oral decongestant, ask a pharmacist for pseudoephedrine from behind the pharmacy counter, which actually works.

2. Diphenhydramine (Benadryl)

• What it is: A first-generation antihistamine widely used for allergies and sleep.
• Why doctors say to avoid it: Especially for adults over 65, it causes severe side effects like heavy daytime grogginess, confusion, high risk of falls, and trouble urinating. Chronic use has also been linked to cognitive decline.
• What to do instead: Switch to newer, safer second-generation antihistamines like loratadine (Claritin) or cetirizine (Zyrtec).

3. Daily Low-Dose Aspirin (for Primary Prevention)

• What it is: Taking a daily aspirin to prevent a first heart attack or stroke.
• Why doctors say to avoid it: Updated guidelines advise against starting daily aspirin if you have never had a cardiovascular event, because the risk of dangerous stomach bleeding often outweighs the preventative benefits. (Note: If you already take it under strict doctor's orders for an existing heart condition, do not stop without talking to them).
• What to do instead: Talk to your physician to re-evaluate your personal risk factors and see if a daily aspirin is still appropriate for you.

4. Docusate Sodium (Colace)

• What it is: A widely sold over-the-counter stool softener.
• Why doctors say to avoid it: Robust clinical trials have shown it is largely ineffective as a standalone treatment for constipation.
• What to do instead: Increase your intake of water and try a natural fiber supplement or osmotic laxative if recommended by your care team.

5. Old Codeine Cough Syrup

• What it is: Prescription opioid-based cough medicine kept in home medicine cabinets.
• Why doctors say to avoid it: Studies show codeine cough syrup performs no better than a placebo for suppressing coughs, but carries serious risks of dependence, accidental misuse, and dangerous slowed breathing.
• What to do instead: Safely dispose of leftover prescription narcotics through a community drug take-back program.

Your odds of winning a health insurance appeal are roughly 40% to 50% for standard internal appeals, and up to 70% to 80% if you push through to advanced or prior authorization reviews.

Despite these favorable odds, fewer than 1% of consumers actually appeal their denied health insurance claims.

Success Rates by Appeal Level

• Internal Appeals: Patients win roughly 40% to 44% of the time when asking the insurance company to re-examine its own decision.
• External Reviews: Independent third-party reviewers overturn initial denials about 27% to 40% of the time.
• Prior Authorization Overturns: Statistics from groups like the American Medical Association show that up to 80% or more of denied prior authorization requests get overturned when appealed.

Overturn Rates by Denial Reason

Your chances of winning often depend on why the claim was rejected in the first place:

• Administrative errors or coding mistakes: ~78% success rate
• Not medically necessary: ~70% success rate
• Prior authorization issues: ~65% to 82% success rate
• Service not covered by plan: ~35% success rate

How to Improve Your Odds

• Get the exact reason: Request a written explanation with specific reason codes from your insurer, rather than relying on a brief summary.
• Enlist your doctor: Ask your healthcare provider for a detailed letter of medical necessity that matches clinical guidelines to your specific diagnosis.
• Mind the deadlines: Submit internal appeals typically within 30 to 180 days, and file for an external review within four months of a final denial.