Your surgeon says you need a knee replacement. Your insurer says you need to try physical therapy for 12 weeks, then cortisone injections, then a different injection, then a brace — and only after each has failed, documented by clinical notes, will they consider approving the surgery your surgeon already recommended.
This is step therapy, also called "fail first." It is the most common pre-authorization tactic for delaying surgical approval, and it applies to everything from joint replacements to bariatric surgery to fertility treatments.
How step therapy works
The insurer defines a sequence of treatments from least expensive to most expensive. You must try each step, document its failure (inadequate relief, adverse reaction, or clinical deterioration), and then move to the next step. Only after failing all prior steps is the final step — usually the surgery — approved.
For orthopedic procedures, the typical sequence is: physical therapy (6 to 12 weeks) → oral anti-inflammatories → corticosteroid injection → hyaluronic acid injection → second opinion → surgery. For bariatric procedures: supervised diet program (3 to 6 months) → behavioral counseling → medication trial → surgery. For fertility: timed intercourse → medicated cycles (Clomid/Letrozole) → IUI (2 to 3 cycles) → IVF.
How to move through it faster
Document everything. Every PT session, every injection, every medication trial needs a clinical note recording the outcome — ideally with a standardized pain score or functional assessment that shows lack of improvement. Ask your provider to document using the insurer's specific failure criteria, not general clinical notes.
If you have already completed steps with a previous provider, submit those records to avoid repeating them. Most step therapy policies accept prior treatment documentation — you do not have to start over with a new provider.
State protections
As of 2026, several states have enacted step therapy reform laws that require insurers to grant exceptions when the patient has already tried and failed the required steps, the required step is contraindicated for the patient, or the delay would cause irreversible harm. Check your state's insurance department website for applicable protections.
For what happens after step therapy fails and surgery is still denied, see Your Surgery Was Denied: Every Option.
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Talk to Someone →Frequently asked questions
Can I refuse step therapy?
You can refuse to participate, but the insurer will deny coverage for the surgery. Step therapy is a condition of coverage, not a medical order. Your surgeon can request an exception if the steps are medically inappropriate for your case.
How long does step therapy typically take?
3 to 18 months depending on the procedure and the number of required steps. Orthopedic step therapy typically takes 3 to 6 months. Bariatric can take 6 to 12 months. Fertility step therapy can extend to 12 to 18 months before IVF is approved.