Why this denial happens
- The requirement was discovered after the service, not when it was ordered.
- The authorization expired or the approved number of visits was used up.
- The service billed differed from the one authorized.
- The authorization number was not put on the claim.
How to fix a claim that was denied
- Check whether an authorization exists and was simply missing from the claim; if so, send a corrected claim with it.
- If none was obtained, ask the payer whether it accepts retroactive authorization for this service; some do within a short window.
- Otherwise appeal with the clinical documentation showing the service was necessary and urgent if it was.
- Record the outcome so the same service is flagged next time.
How to prevent it
- Check authorization requirements when the service is ordered, by payer and plan.
- Track every approval with its number, dates and remaining visits, and warn before scheduling outside them.
- Carry the authorization onto the claim automatically.
Agentic AI in XEHR
How XEHR’s agents handle missing prior authorization denials
- Services that commonly need approval are flagged when ordered, and the request is prepared from the chart for staff to review and submit.
- Approvals are tracked in one list with dates and remaining visits, and the number flows onto the claim.
Agents check and prepare; your billers approve and send. How agentic AI works
Common questions
Can you get prior authorization after the service?
Some payers allow retroactive authorization for certain services within a short window, especially when care was urgent. Check the payer’s provider manual.
How long do payers have to answer prior authorization requests?
Under CMS-0057-F, impacted payers must decide standard requests within 7 calendar days and expedited ones within 72 hours, starting in 2026.
General information for US practices, not legal advice. Payer rules differ: check your contract and the payer’s provider manual.
