What does a payer actually need to see in a prior-authorisation request?

I would like to understand the process rather than be told to try harder.

I am trying to do this correctly the first time rather than learn it by getting it wrong.

I have already made one mistake here that cost me a vial, so I am being deliberately careful.

What does a defensible version of this look like in practice?

Answering this needs the plan, since criteria vary and a general answer is not actionable.

A peer-to-peer review — the prescriber speaking to the plan's reviewer — is available in many systems and resolves a meaningful proportion of denials that a written appeal would not.

503A versus 503B

Submit the supporting documents with the request rather than waiting to be asked. Requests denied for insufficient information are denials that a complete submission would have avoided.

Appeal windows and renewal periods are defined in plan documents and are strictly applied.

The denial reason is the appeal specification. Address it directly.

Specifically, this is a paperwork problem with a paperwork solution, and framing it that way is the most useful thing anyone can do.

Each criterion must be evidenced in the clinical record, dated, before the request. A criterion asserted in a covering letter but absent from the notes is the commonest reason for a denial.

Stated carefully, approvals expire. Note the renewal date when the approval arrives, because a lapse mid-treatment is administratively identical to a fresh denial.

Medical policies stating prior-authorisation criteria are published by plans and are obtainable before submission.

Get the criteria first. A request written blind is a request written badly.

Start by obtaining the criteria before the request is submitted, because a request written blind is a request written badly.

Where prerequisite therapy is required, the record needs the agent, the dates, the dose and the reason it was stopped. "Tried and failed" without those four elements is not documentation.

Track the deadlines. Appeal windows are finite, and a well-founded appeal filed late is worth nothing at all.

A substantial proportion of denials cite incomplete documentation rather than clinical non-eligibility, which is why complete first submissions matter.

Evidence every criterion in the dated record, not in a covering letter.