Official CARC description: “Information requested from the Billing/Rendering Provider was not provided or was insufficient/incomplete.” Here’s what it actually means, why it fires, and how to get the claim paid.
The payer asked YOUR office for something — records, a W-9, credentialing data — and either got nothing or not enough. Often the request letter went to an old address or sat in an unworked queue.
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.
Find the original request — call the payer for the exact list and deadline if lost
Send everything on the list in one package, indexed, claim number on each page
Update the correspondence address on the payer file
Request reopening rather than fresh appeal when documents were merely late
Submit the requested information with a reopening/reconsideration request. If you can show the response WAS sent timely (fax confirmation, portal receipt), demand reprocessing without penalty.
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.
Information requested from the Billing/Rendering Provider was not provided or was insufficient/incomplete. In practice: The payer asked YOUR office for something — records, a W-9, credentialing data — and either got nothing or not enough. Often the request letter went to an old address or sat in an unworked queue.
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.
Submit the requested information with a reopening/reconsideration request. If you can show the response WAS sent timely (fax confirmation, portal receipt), demand reprocessing without penalty.