Official CARC description: “The date of death precedes the date of service.” Here’s what it actually means, why it fires, and how to get the claim paid.
The payer's records show the patient died before the DOS. Either a DOS error — or, distressingly often, a wrong death date on the government file for a living patient.
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.
Verify the DOS against the chart first
Living patient: they (or family) must correct the record with SSA — provide the SSA office letter path
After correction: resubmit with a note referencing the fixed death record
Post-death services (e.g. death pronouncement): use the payer's specific billing rules
For living patients this always reverses — but only after the SSA/payer record is fixed. Document everything for timely-filing protection; these take months.
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 date of death precedes the date of service. In practice: The payer's records show the patient died before the DOS. Either a DOS error — or, distressingly often, a wrong death date on the government file for a living patient.
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.
For living patients this always reverses — but only after the SSA/payer record is fixed. Document everything for timely-filing protection; these take months.