Prior authorization for semaglutide
Prior authorization is not a refusal. It means the plan requires a review before deciding coverage. What decides it is what gets submitted against the plan’s own written criteria. So the useful move is not to argue — it is to find the criteria, then make sure the submission answers them.1
The clock starts on the written notice
Every deadline below runs from a document, not from a phone call. If you have been told no over the phone, ask for the decision in writing before anything else. Until it exists, none of the routes on this page have started.
On this page
- What the plan is actually asking for
- Four requests that are not the same thing
- The part that decides it: the prescriber’s supporting statement
- If it is refused: the published deadlines
- The denial reasons a plan actually uses
- What to keep
- Questions
- A compounded prescription is a different case
- If the appeal does not succeed
- When to call your prescriber
What the plan is actually asking for
Medicare’s own description is the clearest published one, and commercial plans use the same vocabulary. Prior authorization is “approval based on a plan’s specific requirements that you and/or your prescriber must get from a plan for certain drugs before your plan will cover them.” Step therapy is described as a type of prior authorization requiring you to try “a certain, less expensive drug on the plan’s drug list” first before moving up a step. Quantity limits cap how much the plan covers over a period.1
Ask member services for “the prior authorization criteria for this drug” by name, and ask for them in writing. The prescriber’s office often has them already. If you are choosing a service for help with documentation, the Ro review and LifeMD review distinguish insurance assistance from a guarantee that a medicine will be covered.
Four requests that are not the same thing
People use “appeal” for all of these, and they have different forms and different outcomes. The Medicare definitions below are CMS’s own.
| Request | What it asks for |
|---|---|
| Coverage determination | The plan’s first decision about whether a drug is covered for you, whether you met its requirements, and what you pay. Everything else follows from it. |
| Formulary exception | To get a drug that is not on the plan’s formulary, or to have a utilization management requirement — step therapy, prior authorization, a quantity limit — waived for a drug that is on it. |
| Tiering exception | To get a non-preferred drug at the lower cost-sharing that applies to a preferred tier. This is about price, not about whether you can have the drug. |
| Redetermination | The level 1 appeal, after an unfavorable coverage determination. It is a review by the plan itself, not by an outside body. |
CMS, “Exceptions”, page last modified 09/10/2024, and Medicare.gov, “Drug plan rules”, which prints no revision date; both read September 2026. Both are listed in full under Sources below.
The part that decides it: the prescriber’s supporting statement
CMS states that exception requests are granted when the plan determines the drug is medically necessary, and that the prescriber must therefore submit a supporting statement. For a formulary exception, CMS says that statement must indicate that the non-formulary drug is necessary because all covered Part D drugs on any tier would not be as effective or would have adverse effects, or that a dose restriction has been or is likely to be less effective, or that the alternatives listed on the formulary or required by step therapy have been or are likely to be less effective or to have adverse effects.3
Read that list again as a checklist, because that is what it is. A statement that says the patient would prefer this drug does not meet any of those tests; a statement that records which alternatives were tried, when, and what happened, meets several. CMS also says the prescriber may give the statement verbally or in writing, and that the plan may then require the written follow-up.
Once the plan has that statement, CMS says it must give written notice of its decision within 24 hours for an expedited request or 72 hours for a standard one — those are the clocks for a request for benefits, i.e. for the drug itself. Where the request is for payment — you have already paid and are asking to be reimbursed — CMS gives the plan 14 calendar days from receiving the request.3
If it is refused: the published deadlines
Two different systems, two different sets of numbers. Find your row before you find your argument. Missing a deadline can limit your appeal options. Medicare says to give a reason if you file late; follow the instructions in your notice.2
| Step | Medicare drug plan | Marketplace or employer plan |
|---|---|---|
| Plan must tell you it said no | In the initial denial notice from the plan | Within 15 days when you are seeking prior authorization; 30 days for services already received; 72 hours for urgent care |
| You have this long to appeal | 65 days from the date on the initial denial notice | 180 days from receiving notice that the claim was denied |
| What the first appeal is called | Redetermination — level 1 of 5 | Internal appeal |
| They must decide within | 7 days for a benefits appeal; 14 days for a payment appeal; 72 hours for a fast appeal | 30 days if you have not had the service yet; 60 days if you have already had it |
| If they say no again | 60 days from that decision to request a reconsideration by an independent review entity — level 2 | External review by a reviewer outside the insurance company. You have 4 months from the date you receive the insurer’s notice or final determination to file the written request |
| The outside review takes | Level 2 and above run through the Medicare appeals levels | No later than 45 days for a standard review; no later than 72 hours, or less, for an expedited one |
These are the federal floors for those two systems; your own plan’s documents govern your case, and a state process may differ. Medicare figures from Medicare.gov, which prints no revision date; Marketplace and employer-plan figures from HealthCare.gov, which prints none either. All four are listed under Sources below.
Roughly the first eleven months after a written denial, each band drawn from the window its own source states.
- 180 days
- To file the internal appeal, running from the day you receive notice that the claim was denied.
- 30–60 days
- For the plan to decide the internal appeal — 30 days if you have not had the service yet, 60 if you have. (drawn to the longer end of the published range)
- 4 months
- To file the written request for external review, running from the insurer's notice or final determination. (the only window the source states in months rather than days)
- 45 days
- For the external reviewer's standard decision; no later than 72 hours, or less, for an expedited one.
HealthCare.gov, “Internal appeals” and “External Review”, read September 2026; neither prints a revision date. Each label is the figure the source publishes and each bar is drawn from that same figure — the 4-month window is the only one not published in days, so its bar alone uses an average month while its label keeps the source’s own words. The bands run consecutively here for legibility — in practice the clocks start on their own documents and can overlap, and in an urgent situation the external review can be asked for at the same time as the internal appeal.
On the Marketplace and employer side, HealthCare.gov states that an external review either upholds the insurer’s decision or decides in your favor, and that the insurer is required by law to accept the reviewer’s decision. That is the single most useful fact on this page: the last word is not the insurer’s.5
It also states that in an urgent health situation you can ask for an external review at the same time as the internal appeal, rather than waiting for the internal one to finish.5
The denial reasons a plan actually uses
HealthCare.gov lists seven grounds on which a plan may issue a denial, and all seven are below. Reading them tells you which argument you are having:4
- The benefit is not offered under your health plan.
- The requested service or treatment is not medically necessary.
- The requested service or treatment is experimental or investigative.
- You received services from a provider or facility that is not in the plan’s approved network.
- Your medical problem began before you joined the plan.
- You are no longer enrolled or eligible to be enrolled in the health plan.
- The insurer is revoking or canceling your coverage back to the date you enrolled, because it claims you gave false or incomplete information when you applied.
That last one is not a coverage argument at all. It is the insurer trying to unwind the policy. It is also one of the denial types HealthCare.gov says can go to external review, so if it is the one on your notice, the route below matters more rather than less.
The first two are the ones that come up here, and they are opposites in practice. If the benefit is not offered at all, more clinical documentation will not move it — that is a question about what your plan bought, and the coverage pathway page is where to start. If it is medical necessity, documentation is precisely what moves it.
What to keep
HealthCare.gov’s own list, and it is worth following exactly: the explanation of benefits forms or letters showing what was denied, a copy of the internal appeal you sent, anything extra you sent with it, a copy of any form you signed to let someone file on your behalf, and notes and dates from every phone call including the day, the time, and the name and title of the person you spoke to. Keep your originals and send copies.5
Questions
Is prior authorization the same as a denial?
No. It means the plan requires a review before deciding coverage. A denial is what you get if that case is not made, or is made and refused. Only a denial starts the appeal clocks.
How long do I have to appeal?
On a Marketplace or employer plan, 180 days from receiving notice that the claim was denied. On a Medicare drug plan, 65 days from the date on the initial denial notice. Both run from the written notice, not from the phone call.
They denied the appeal too. Is that the end?
No. On a Marketplace or employer plan you have 4 months from the insurer’s notice or final determination to file a written request for external review, and HealthCare.gov states the insurer is required by law to accept the reviewer’s decision. On a Medicare drug plan you have 60 days to ask an independent review entity for a reconsideration — level 2 of five.
The plan says the benefit is not offered. Will more documentation help?
Probably not, and that is worth knowing before you spend a deadline on it. That is a question about what your plan bought, not about medical necessity — the coverage pathway page is where to start instead.
Can I file the prior authorization myself?
No. It is submitted by the prescriber’s office, and it is routine work for them. What you can do is get the plan’s written criteria and make sure the office has them before the case goes in.
A compounded prescription is a different case
The route above assumes the prescription is for an approved product on a drug list. A compounded preparation raises a different question and it is worth knowing which one you are in before you spend a deadline on it.
If the appeal does not succeed
The cash-pay picture is a separate page — what semaglutide costs by dose, not as one headline number.
When to call your prescriber
Call before changing anything. A prior authorization, a denial and an appeal are all payment events; none of them is a clinical instruction, and none of them is a reason to stop, stretch or split a dose on your own.
A prior authorization is one step in a longer sequence. What the plan is deciding before it gets here is on does insurance cover semaglutide; why a compounded prescription is a separate question is on is compounded semaglutide covered; and if the request is refused, the cash figures sellers publish are on what semaglutide costs by dose — with the caveat that a “starting at” figure is a floor and not a rate.
Read next
Sources
A reference, not medical advice, and not a substitute for your prescriber or pharmacist. It is not insurance advice either: only your plan’s own documents and your plan’s own staff can tell you what it covers. If you think you are having a medical emergency, call your local emergency number.