Official CARC description: “Non-covered charge(s). The related remark code identifies why.” Here’s what it actually means, why it fires, and how to get the claim paid.
The payer classified the service as outside the benefit plan. The companion RARC and the plan document decide whether this is real — benefit exclusions are misapplied constantly, especially on preventive-vs-diagnostic and screening services.
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.
Pull the RARC and the plan's evidence-of-coverage language for that service
If miscategorised: appeal citing the benefit section that covers it
If truly excluded: shift liability correctly (ABN on file? then bill patient)
Preventive claims: verify dx order and modifier 33 before conceding
Appeal when the plan actually covers the service: quote the member handbook/EOC section, attach the ACA preventive-services list where applicable, and challenge the benefit categorisation — these reverse more often than any “real” exclusion.
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.
Non-covered charge(s). The related remark code identifies why. In practice: The payer classified the service as outside the benefit plan. The companion RARC and the plan document decide whether this is real — benefit exclusions are misapplied constantly, especially on preventive-vs-diagnostic and screening services.
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.
Appeal when the plan actually covers the service: quote the member handbook/EOC section, attach the ACA preventive-services list where applicable, and challenge the benefit categorisation — these reverse more often than any “real” exclusion.