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Some SNF denials you can prevent. The rest are worth appealing.

4 min read

SNF claim denials split two ways: the ones you can prevent before you submit, and the Medicare Advantage prior-auth denials worth appealing. Here is how to tell them apart.

A skilled nursing facility sends a claim, it comes back denied, and the payment stalls in a worklist. Read the denials over a quarter and they sort into two piles that call for two different responses. One pile traces to documentation, caught before the claim ever goes out. The other pile is the payer's read, and a good share of it is worth contesting.

The scale of the problem

The SNF improper-payment rate reached 17.2 percent in 2024 (CMS CERT, 2024). Most of it comes down to paperwork that did not hold up when someone looked.

The denials that trace back to a document

Insufficient documentation drove 75.5 percent of SNF inpatient improper payments in 2024 (CMS CERT, 2024). These are the preventable pile, because each one traces to something knowable before the claim went out:

  • Documentation that was missing or late. The order, the assessment, or the daily skilled note was not in the record when the claim was built.
  • Coding to the wrong level. The service billed reads higher than what the documentation supports.
  • Eligibility and authorization gaps. Coverage or prior authorization was not confirmed for the dates of service.
  • Dates and units that do not tie out. The days and units on the claim do not reconcile to the 837 or to the record behind it.
A denied claim Preventable before submission missing or late documentation coding to the wrong level eligibility and authorization gaps dates and units that do not tie out fix it in your process Contestable after denial Medicare Advantage prior auth on the admission itself the medical necessity read against the plan's own criteria appeal before the window closes
Two piles, two responses. One is fixed in your process; the other is appealed against the contract.

The denials that trace back to the payer

The second pile comes from the payer. Medicare Advantage plans denied about 12 percent of requests to admit a patient to a skilled nursing facility (HHS OIG, 2026). The telling part is what happened next: when providers appealed those prior-authorization denials, Medicare Advantage organizations overturned nearly all of them (HHS OIG, 2026). A denial that gets reversed on appeal was a denial worth contesting.

This pile calls for judgment: the denial reason read against the payer contract and the resident's record, a decision on whether the case is worth appealing, and the appeal drafted with its basis before the window closes.

A short check before you submit

The preventable pile shrinks when four things are true before a SNF claim goes out:

  • The order, assessment and skilled documentation for the dates of service are in the record.
  • The level billed matches what that documentation supports.
  • Eligibility and any required prior authorization are confirmed for the stay.
  • Days and units on the claim reconcile to the 837 and the record behind it.

Where this connects to Symbric

The second pile is the judgment-heavy step, and it is the one that expires unworked while claim volume climbs. This is the work our revenue management takes on under your policy: each denial read against the payer contract and your rules, the appeal drafted with the basis attached, and every action logged with what it did and why, so the reason a case went the way it did stays readable when a payer or an auditor asks later. You set the policy; the work happens where your records already live.

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