What Is a Drug Exception Request
A drug exception request is a formal appeal to your insurance company asking them to cover a medication that isn't listed on your plan's formulary, or to move it to a lower cost-sharing tier. Insurance companies maintain formularies to control costs, but these lists don't always include every medication your doctor prescribes. When your doctor believes a non-formulary drug is medically necessary for your condition, you can request an exception rather than accept a denial or pay out-of-pocket.
When You Need a Drug Exception Request
You typically file a drug exception request in these situations:
- Your prescribed medication isn't on your plan's formulary at all
- The drug is on the formulary but in a higher cost-sharing tier (meaning higher copays or coinsurance)
- Your insurer requires you to try a cheaper alternative first (step therapy), but your doctor believes the prescribed drug is necessary immediately
- You've already tried the formulary alternative and it didn't work or caused adverse effects
How the Process Works
Your doctor initiates most exception requests by submitting clinical documentation to your insurer. They'll include your medical history, why the specific drug is necessary, and why formulary alternatives won't work for your case. This documentation is critical. Your insurer typically has 72 hours to respond to expedited requests and 30 days for standard requests, though these timelines vary by state and plan type.
If denied, you have the right to file an internal appeal with your insurance company. During an internal appeal, a different reviewer examines the case. If the internal appeal is also denied, you can request an external appeal to an independent third party, which is required by law in most states. External appeal decisions typically come within 30 days.
What Your Doctor Needs to Submit
- Diagnosis and treatment history relevant to why this medication is needed
- Explanation of why formulary alternatives are inappropriate (allergy, contraindication, previous treatment failure)
- Clinical evidence supporting the medication choice, such as peer-reviewed studies or clinical guidelines
- Expected outcomes and timeline for treatment
How This Appears on Your EOB
When a drug exception request is denied, your Explanation of Benefits (EOB) will show the claim as "Denied" with a reason code. Common codes include "Not on Formulary" (typically code 191) or "Step Therapy Requirements Not Met" (code 192). The EOB will include instructions for appeal and your appeal deadline, usually 30 to 60 days from the denial date.
Common Questions
Do I have to pay for the medication while waiting for an exception decision?
Your insurance company may require you to pay out-of-pocket during the review period. Some plans will retroactively cover the medication if the exception is approved, but this varies. Ask your pharmacy or insurer specifically whether they'll backdate coverage.
What happens if my internal and external appeals are both denied?
You'll need to pay the full cost unless your state has additional protections. However, many states require insurance companies to clearly explain their medical reason for denial so you can challenge it further or seek a second medical opinion. Document everything in writing for future claims.
Does my income or financial situation affect whether I get an exception approved?
Not directly. Insurance companies base exception decisions on medical necessity, not your ability to pay. However, if cost is a barrier, your doctor can note this and explore manufacturer assistance programs or generic alternatives during the process.