Prior authorization is your health plan’s checkpoint: for some scans, procedures, and medicines, the plan must agree in advance that the care is covered before it happens. It is an administrative step, not a judgement about you or your doctor — but it can slow things down if nobody is watching it. This guide explains why plans require it, how the process usually works, and what you can do to keep your care moving.
Key Takeaways
- Prior authorization — also called preauthorization or precertification — means approval from your health plan before care, so that the care is covered as expected.
- It commonly applies to items such as certain scans, procedures, and higher-cost medicines. Your own plan’s rules decide exactly which.
- Usually your doctor’s office submits the request, with clinical information from your records. You are not expected to write it yourself.
- Approval confirms the service is covered; it is not a promise of the final amount. Your deductible, coinsurance, and network status still shape what you pay.
- If a request is denied, it is not the final word: more information can be provided, a review requested, or the decision appealed.
What Prior Authorization Is
Before some kinds of care, your health plan wants to check two things: that the service is one your plan covers, and that it fits the plan’s criteria for being medically necessary. That check, done in advance, is prior authorization. The plan is not questioning your doctor’s integrity, and a request is not an accusation that the care is wrong — it is the plan applying its coverage rules before money is spent, rather than arguing about them afterwards.
Why plans do this becomes clearer from their side of the desk: for any given problem there may be several reasonable options with very different costs, and plans use the checkpoint to confirm the option chosen is covered and appropriate under their rules. From your side of the desk, what matters is practical — care that needed approval but did not get it may be paid at a reduced level or not at all, so the step cannot be skipped or assumed. The glossary at healthcare.gov defines prior authorization in plain language, and our pillar guide to paying for breast cancer care shows where this checkpoint sits in the wider picture of treatment costs.
What Usually Needs Approval
Every plan keeps its own list, and lists change, but in breast cancer care the checkpoint commonly applies to:
- Advanced imaging — scans beyond the routine, such as MRI, CT, or PET imaging, and sometimes imaging repeated sooner than usual.
- Procedures and surgery — some operations and outpatient procedures need approval in advance, particularly where more than one approach exists.
- Certain medicines — especially newer or higher-cost cancer medicines, and medicines given in a clinic or hospital setting.
- Radiation therapy in some plans, where the course of treatment is reviewed before it begins.
- Genetic testing in some plans, where the plan checks whether your situation fits its testing criteria.
- Specialist services and equipment — items such as home health visits or medical equipment, depending on the plan.
Treat this as a pattern to be alert to, never as your plan’s actual list. The reliable sources are your plan documents, your member portal, and the benefits department of the office providing your care — and asking early is what turns this from a potential delay into a routine formality.
How the Process Usually Works
- The need is identified. During treatment planning, your care team notes which parts of the plan are likely to need authorization under your insurance.
- Your provider’s office submits the request. Staff send the plan your relevant clinical information — the diagnosis, the test results, and why the care is being recommended. This is their daily work; you do not write the request.
- The plan reviews it. Reviewers compare the request against the plan’s coverage criteria. They may approve it as submitted, ask for more information, or arrange a “peer-to-peer” conversation, in which your doctor explains the reasoning directly to a doctor working for the plan.
- A decision comes back. Approval is recorded against your care, and the service can be scheduled or proceed. If the answer is no, the plan must explain why — and that explanation is the starting point for what happens next.
- Keep the reference. Approvals come with reference details. Note them, with the date, alongside your other insurance papers; they settle most later disagreements quickly.
How long the review takes varies with the plan, the service, and how complete the submission is — straightforward requests can move quickly, while others take longer, and there is no single timetable that applies to everyone. Plans and providers do have ways of flagging genuinely urgent requests for faster handling, and your team will do this when the clinical situation requires it. What you can control is visibility: knowing which approvals are outstanding, and checking on them, rather than discovering a gap on the day of an appointment.
Prior Authorization vs Similar Terms
| Term | What it means |
|---|---|
| Prior authorization | Your plan’s approval, before care, that a service is covered — arranged by the provider’s office |
| Referral | Your primary care doctor directing you to a specialist; some plans require one before specialist care is covered |
| Eligibility check | Confirming that your coverage is active and what it generally includes — usually done when you register for care |
| Claim | The request for payment sent after care has happened — the bill your plan processes |
| Explanation of benefits (EOB) | The statement after a claim showing what was billed, what the plan paid, and what you may owe |
These steps are easy to confuse because they involve the same cast of people. The distinction that protects you is timing: a referral and prior authorization happen before care; a claim and an EOB happen after it.
What to Do Next
- At treatment planning, ask which parts of your care are likely to need prior authorization, and confirm who in the office handles the requests.
- Before each major appointment, scan, or procedure, confirm that any needed approval is actually in place — do not assume it went through.
- Record approval references and dates with your insurance papers, alongside the name of anyone you speak to.
- If an appointment is approaching and approval is still outstanding, call the provider’s office and ask about the status; a short call now prevents a cancelled session later.
- If paperwork problems threaten to delay care you need, involve a hospital financial counselor — untangling authorizations is a standard part of their role.
- Never delay emergency care to sort out authorization. Get help first; emergencies are handled under different rules, and the paperwork can be addressed afterwards.
If a Request Is Denied
A denial is frustrating, but it is a step in a process rather than the end of one. Denials commonly come back to one of a few things: information the plan needed was missing, the request did not match the plan’s written criteria as submitted, or the plan is asking why a covered alternative would not do. Each of those has a response. Your provider’s office can supply the missing information, your doctor can make the case in a peer-to-peer conversation, and beyond that there is a formal appeal — our guide to appealing a health insurance denial walks through that route step by step.
Your part in a denial is mostly persistence and paper: keep the denial letter, note dates and names, and ask the office plainly what is happening next and what, if anything, they need from you. If the money side of a denial worries you, raise it early with the financial counselor as well — they can explain what the denial does and does not mean for your bills while the review continues. Rules for reviews and appeals vary by plan and by state, so treat the letter’s own instructions and your plan’s member services as the authority for your case.
Frequently Asked Questions
Who asks for prior authorization — me or my doctor?
Almost always your doctor’s office. The request needs clinical information from your records, and provider offices have staff who do this routinely. Your role is different but real: knowing which approvals your care needs, confirming they are in place before appointments, and keeping the references.
If care is approved, does that mean the plan pays for all of it?
No. Approval means the service is covered under your plan; it does not fix the amount you will owe. Your usual cost-sharing still applies — the deductible you may still be working through, coinsurance on the allowed amount — and whether the provider is in your network still matters. Approval removes one obstacle; it is not a promise of a zero bill.
How long does prior authorization take?
It varies too much to give one honest answer: by plan, by service, by how complete the first submission is, and by whether the request is marked urgent. Straightforward requests can be quick; complex ones take longer. The practical move is to ask the office submitting it what they expect for your case, check your member portal for status, and follow up if an appointment date starts approaching without an answer.
What happens if care goes ahead without an approval that was needed?
The plan may pay less than expected, or deny the claim for that service, leaving more of the cost with you. Sometimes a review after the fact is possible, depending on the situation and the plan’s rules — but it is far easier to confirm approval beforehand than to repair things afterwards. This is exactly the kind of problem a financial counselor can help you work through if it has already happened.
What if my treatment is urgent — do I have to wait for approval?
No. Urgent requests can be flagged for faster review by your care team, and genuine emergencies are treated first and sorted out afterwards — never delay emergency care over paperwork. For planned care that feels time-sensitive, tell your team about your concern; they judge clinical urgency every day and know how to present it to the plan.
Related Articles
- Paying for Breast Cancer Care: The Complete Guide to Finding Help
- How to Appeal a Health Insurance Denial for Breast Cancer Care
- Hospital Financial Counselors: Help With the Money Side of Care
- What Is a Health Insurance Deductible? A Plain-English Guide for Patients
- Financial Help and Insurance Questions in the United States
This article is for general educational purposes only and is not medical, legal, or financial advice. It does not replace professional care. Talk to your doctor or care team about your own situation. If you think you may have a medical emergency, call 911.