The related service this one depends on was not on the claim.
CO — Contractual obligation — the provider absorbs it and cannot bill the patient.
So the balance cannot move to the patient. Either the appeal recovers it or the practice absorbs it. That makes the appeal decision the whole decision on this line.
Fix and resubmit. This is a correction, not an appeal. Appealing burns the deadline.
In the order we see it.
An add-on code billed without its primary procedure.
The related service went out on a separate claim and the payer could not link them.
Bill the qualifying service, or resubmit both lines on one claim so the payer can see the relationship.
The documentation, not the argument.
Both services on one claim, or the claim number of the primary procedure.
The common mistake. Do not appeal an add-on code on its own. Without the primary on the claim the payer has nothing to attach it to.
Where this comes from. This is our own reading of the code, not the payer's and not a copy of the standards text. We classify it from how these denials actually resolve. Where we are unsure, we say so rather than guessing.
Send your denial summary for the last ninety days. Four columns: payer, CARC code, count, billed amount. I will tell you which were winnable and what they were worth.
Send your denial summary No patient data. No BAA. No charge.
AppealHound