Getting old claims paid before the filing deadline

Why this deadline is different

Most problems in billing are recoverable with enough effort. Timely filing is not. On a fixed date a valid claim for work you genuinely performed becomes worth zero, and there is usually no appeal because the payer has done nothing wrong.

This is why sorting aged A/R by balance is the wrong instinct. A $4,000 claim with five months left is safe. A $300 claim expiring in nine days is not, and after those nine days the difference between them is permanent.

Find what is at risk this month

• Pull every open claim with its date of service, not its submission date. Filing limits generally run from service.
• List the filing limit for each payer you bill. They differ substantially, and some differ by plan within the same payer.
• Calculate days remaining for every open claim.
• Sort ascending and work from the top.

Most practices doing this for the first time find claims already past the limit. Those are a write-off, but they tell you how long follow-up has been failing — and that is useful information for the audit.

What to do with what is left

Never submitted

Submit immediately, today. Do not investigate first. A claim submitted inside the window can be corrected afterwards; one submitted late generally cannot be rescued.

Submitted and denied, never worked

Check whether the appeal window is separate from the filing window — it often is, and sometimes shorter. Work these next.

Submitted and pending with no response

Chase the payer directly and document every contact. If a claim was received inside the window, proof of timely submission is sometimes accepted even when the resubmission falls outside it.

Rejected at the clearinghouse

These are the dangerous ones, because a clearinghouse rejection means the payer never received the claim — so the clock has been running with nothing in flight. Easy to miss entirely if nobody reviews rejection reports.

Preventing the next batch

Run a days-remaining report monthly and act on anything inside 30 days of expiry. That one habit prevents nearly all permanent filing losses.

And review clearinghouse rejections weekly. A rejected claim looks submitted in your system but was never received, which is the most common way claims quietly cross a deadline. Rejections and denials are different things and are handled differently.