Official CARC description: “The benefit for this service is included in the payment/allowance for another service/procedure that has already been adjudicated.” Here’s what it actually means, why it fires, and how to get the claim paid.
The payer bundled this line into another paid service — classic global-period and NCCI-edit territory. The money is recoverable when the service was genuinely separate and you can prove it.
Liability group: CO = Contractual Obligation — the provider absorbs it — the amount cannot be billed to the patient. If the denial is wrong, the money is recovered by correcting or appealing the claim, not by balance-billing.
Also written: CO-97, CO97, “denial code 97”, “97 denial code” or “reason code 97” — same CARC, different ERA formatting.
Run the pair through the NCCI edits table — check if a modifier is allowed (indicator 1)
If separate and distinct: corrected claim with modifier 59/XE/XS/XU (or 25 for E/M)
If inside a global period but unrelated: modifier 24/79 with documentation
If the payer policy misfired: appeal with records proving separate service
Highly appealable when the services were distinct: appeal with the op note or visit note showing separate site, separate session or separate problem, and cite the NCCI modifier indicator that permits unbundling.
Fill in the denial facts — use placeholders, never real patient data (the letter keeps [PATIENT NAME]-style fields so you can merge real details privately). A payer-ready draft with an enclosure checklist comes back in ~20 seconds.
Your appeal letter draft will appear here.
The official CARC description for CO 97 is: “The benefit for this service is included in the payment/allowance for another service/procedure that has already been adjudicated.” In practice: The payer bundled this line into another paid service — classic global-period and NCCI-edit territory. The money is recoverable when the service was genuinely separate and you can prove it.
Denial code 97 under the CO group (Contractual Obligation) means: The benefit for this service is included in the payment/allowance for another service/procedure that has already been adjudicated. The number is the reason; the CO prefix decides who is liable — the provider absorbs it — the amount cannot be billed to the patient. If the denial is wrong, the money is recovered by correcting or appealing the claim, not by balance-billing.
Yes. CO 97, CO-97, CO97 and “denial code 97” are the same CARC — clearinghouses, payer portals and PM systems just print it differently. Only the group prefix (CO, PR, OA or PI) changes the meaning, because it changes who has to absorb the amount.
CO stands for Contractual Obligation — the provider absorbs it — the amount cannot be billed to the patient. If the denial is wrong, the money is recovered by correcting or appealing the claim, not by balance-billing.
Highly appealable when the services were distinct: appeal with the op note or visit note showing separate site, separate session or separate problem, and cite the NCCI modifier indicator that permits unbundling.