How to stop losing revenue to prior authorizations
At a glance
- Prior authorization requirements continue to expand across payers. More visits require approval and re-authorization during the plan of care.
- Most revenue loss comes from operational breakdowns. Expired authorizations, delayed submissions, and missed appeals drive avoidable denials.
- Earlier tracking and submission reduce treatment gaps. Starting re-authorization workflows before expiration helps protect both revenue and continuity of care.
- Appeals are underused but effective. A significant portion of denials are overturned when formally appealed with clear clinical documentation.
Table Of contents
Your client needs six more sessions. You know it clinically. Their outcomes data supports it. But before you can schedule those visits, you need payer approval and the wait can mean a treatment gap that derails their plan of care.
Prior authorization in rehab therapy is not a new problem. But it keeps getting harder, and most practices are still managing it reactively instead of proactively.
This post is about changing that.
“The billing and reimbursement frustration I saw over and over was declining reimbursement rates, increasing denial rates at the payer level, and the amount of required documentation to justify treatment. Keeping up with constantly changing payer requirements — that’s the part that never stopped.”
— Shannon Foster, MS OTR/L | Former Occupational Therapist
Why prior authorization has gotten harder
Prior authorization requirements have been expanding across Medicare Advantage and commercial payers for years, meaning more visits requiring approval, more documentation, and more waiting before care can continue.
Research on administrative burden in healthcare shows prior authorization requirements have grown significantly across payer types over the past decade. Therapy practices feel it more acutely than most: care happens across many visits, and re-authorization is often required mid-plan and the cycle repeats multiple times per client.
The revenue picture
Authorization problems cost practices money in ways that don’t all appear in the same place.
- Write-offs from services rendered without authorization. If a visit happens before approval comes back, the claim can deny and the only path to recovery is an appeal.
- Scheduling gaps during pending decisions. A client who can’t be seen while an authorization is pending often creates a gap that’s hard to refill, and that lost capacity can ripple across the schedule.
- Mid-plan-of-care dropout from gaps. Clients who experience an unexplained break in care might not return. A single missed re-authorization can turn a full plan of care into a partial one.
- Administrative overhead. Submission, follow-up, appeals, and payer portal navigation are real staff hours that grow with payer complexity.
The pattern that costs the most:
Most practices lose revenue to authorization issues they never see coming. Such as expired authorizations caught only after services are already rendered, at which point the denial is nearly unavoidable.
A quick self-audit (2 minutes)
If you’re answering “I’m not sure” to any of these, that’s where revenue leakage hides.
- How many active clients are currently under visit-based authorizations?
- Of those, how many authorizations expire within the next 14 days?
- How many denials went unappealed last quarter simply because no one owned them?
That’s exactly what the timeline below is designed to prevent.
A prior authorization timeline that prevents gaps
Most authorization write-offs don’t happen because the clinical case is weak. They happen because the re-authorization process starts too late. The timeline below is designed for staying ahead of expiration dates and avoiding treatment gaps.
| When | What to do | Why it matters |
|---|---|---|
| At evaluation | Verify authorization status and visit count. Confirm the payer’s re-authorization trigger point. | Some payers require re-authorization at visit 6. Others at 10 or 12. Know your number before billing begins. |
| At 50% of authorized visits used | Begin re-authorization documentation. Pull progress notes, functional outcome data, and plan of care. | Many appeals fail because documentation was incomplete at submission — not because the clinical case was weak. |
| 10–14 days before authorization expires | Submit re-authorization request. Flag as pending in the scheduling system. | Build enough lead time to absorb a payer delay without creating a treatment gap. |
| Authorization pending / no decision | Contact payer for status. Hold scheduling decisions if coverage is unclear. Tell the client what is happening. | Clients who are not told why their appointment is on hold often assume the practice is unavailable and go elsewhere. |
| Authorization denied | Initiate appeal within 48 hours. Assign to a named owner. Write in clinical language, not billing language. | About a third of appealed authorization denials are overturned. Ad hoc appeals are reversed far less often. |
If keeping track of all this manually is where things fall through the cracks, an EHR that handles authorization status at the scheduling level changes the dynamic. Fusion’s scheduling includes authorization reminders and tools to add and manage authorizations directly within the scheduling workflow; that way expiration dates surface before they become denied claims. Request a demo to see how it works in practice.
Documentation-ready re-authorization: A checklist
Before submitting any re-authorization request, the clinical documentation should support these elements. Most denials citing insufficient documentation are missing one of these:
- Functional outcome measure scores with comparison to a prior period (PROMIS, FOTO, DASH, or payer-specific required tool)
- Specific, measurable goal progress scored against the initial evaluation baseline, not narrative progress alone
- Clinician justification for continued skilled care: why home exercise alone is insufficient at this stage
- Anticipated discharge timeline and remaining goal milestones
- ICD-10 code alignment between the authorization request and the plan of care
- Payer-specific clinical review criteria confirmed before submission
- Referring provider–signed plan of care within the required timeframe (requirements vary by payer and setting)
Failure modes and the recovery playbook
Authorization denials are rarely random. The same patterns show up across practices of all sizes and most of them are recoverable with the right workflow.
- Letting an approval lapse without a visible countdown. The authorization exists, but remaining visits/dates aren’t surfaced where scheduling decisions are being made.
- Submitting re-authorization without the “decision-ready” elements. Missing objective progress, outcomes, skilled-need rationale, or plan-of-care alignment is driving avoidable denials.
- Treating through a coverage gap while a decision is pending. One unheld appointment during “pending” status can become a denial that requires an appeal to recover.
- Letting denials age out because no one owns the appeal. Without an owner, timeline, and template, recoverable revenue becomes a write-off.
When a denial happens: The appeals process
According to the AMA’s 2025 prior authorization physician survey, only about one in 10 authorization denials are formally appealed, yet the majority of those appeals are ultimately approved. For practices with no defined appeals process, that reversal rate is much lower, not because the clinical case is weaker, but because the appeal was submitted late, incompletely, or not at all.
A defined appeals process has three components:
- A named owner for each denial. Someone accountable for submission and follow-up.
- A standard documentation template for appeals submissions. Clinical language, not billing language.
- A tracking system that prevents denials from aging out of their appeals window.
Payers are reviewing whether the clinical necessity standard was met. Appeals that lead with a therapist’s clinical narrative (specific functional deficits, measurable progress, justification for continued skilled care) tend to land better than appeals that focus mainly on code corrections.
What policy change looks like and why advocacy matters
CMS has taken steps to require Medicare Advantage plans to respond to prior authorization requests within defined timelines. It is a start. The APTA, AOTA, and ASHA are all actively working on prior authorization reform at the federal level, and that work matters. Engaging with your professional association’s advocacy is one of the few levers individual practice owners have on the problem that workflow improvements alone cannot fix.
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