PR-29 means the claim arrived after the filing deadline and the payer has assigned the balance to the patient. Participating-provider agreements almost always prohibit billing a patient for an untimely claim, which makes the group code itself the first thing to challenge.
What PR-29 means
Timely filing is an obligation between the provider and the payer. When a contracted provider misses it, the contract typically bars passing the loss to the member, and several states codify that. A PR group code on a filing denial is therefore worth disputing on its own terms even where the lateness is real — and where it is not real, proof of the original submission resolves the whole thing.
Why PR-29 fires
- The claim genuinely arrived after the contractual filing window.
- An earlier timely submission was rejected before adjudication and never resubmitted.
- A corrected claim was treated as a new original and re-dated.
- The claim was routed to the wrong payer first and the clock kept running.
Is PR-29 worth appealing?
Sometimes worth appealing
How to resolve or appeal PR-29
- 1
Produce the acknowledgement
A clearinghouse acceptance report with a date inside the window is the strongest evidence there is.
- 2
Challenge the group code
Quote the provision of the participating agreement that prohibits billing the member for untimely filing.
PR-29 — frequently asked
Can the patient really be billed?
What counts as proof of timely filing?
Reason-code meanings are paraphrased from the X12 Claim Adjustment Reason Code list for plain-language reference; they are not reproduced verbatim. This is general information, not legal, coding, or medical advice — always confirm against the payer's remittance and policy.
Turn this PR-29 denial into a signed appeal
Upload the denied EOB and Merits builds a complete PR-29 appeal — the argument, the payer's own coverage criteria, and your federal appeal rights, every claim cited to a named source. $9 a letter. No account.