What Is CARC 197?

What CARC 197 Means

CARC code 197 indicates that precertification, authorization, notification, or pre-treatment approval was absent or did not apply to the service billed. Payers require prior authorization for high-cost services — imaging, surgeries, specialty drugs, inpatient admissions — to confirm medical necessity before payment. When the claim arrives without a valid authorization number, with an expired authorization, or with an authorization that covers a different CPT code or date range, the payer assigns CARC 197 and denies payment. The denial typically carries a CO group code, blocking patient billing for the denied amount.

Why CARC 197 Matters

Authorization denials including CARC 197 account for roughly 8% of all claim denials industry-wide. Individual denials average $1,200 to $8,000 depending on the service — an denied MRI is different from a denied inpatient stay. Many CARC 197 denials are preventable: the authorization existed but was not entered on the claim, was entered in the wrong field, or covered a different procedure code than what was billed. Others are legitimate gaps where authorization was never obtained. Distinguishing between these scenarios determines whether your fix is a corrected claim resubmission or a full appeal with authorization records.

How CARC 197 Affects Your Claim

CARC 197 typically results in a full line-item or claim-level denial. The payer's system checked for an authorization matching the billed service, date of service, and member ID — and found none. Common scenarios include authorization obtained for CPT 73721 but claim billed with CPT 73722, authorization approved for an outpatient setting but service performed inpatient, or authorization number truncated during claim submission. Some payers issue CARC 197 even when authorization exists in their portal but was not linked during automated adjudication, making appeals with authorization documentation highly effective.

What to Do About CARC 197

Pull the authorization record from your precert system or the payer portal. Compare every detail against the denied claim — member ID, dates, CPT codes, place of service, and rendering provider. If the authorization matches, resubmit the claim with the correct authorization number in the designated field, or appeal with the authorization letter attached. If no authorization exists, determine whether retroactive authorization is available for emergent services. For denied elective procedures, the appeal must argue medical urgency or payer failure to respond within required timeframes. Submit within 30 to 60 days of the denial. Denial Appeal Pro generates authorization-specific appeals with the documentation checklist payers require.

Frequently Asked Questions

What does CARC 197 mean on a denial?

CARC 197 means precertification, prior authorization, or notification was absent, incomplete, or did not cover the specific service billed. The payer requires approved authorization before payment.

Can I appeal CARC 197 if I have an authorization number?

Yes. If you obtained authorization but the payer cannot match it to the claim, appeal with the authorization letter, reference number, effective dates, and proof the authorized service matches the billed CPT code.

Is retroactive authorization possible for CARC 197?

Some payers allow retroactive authorization for emergent services or when the provider can demonstrate they attempted to obtain authorization before the service. Policies vary — check your payer contract.

How much revenue do authorization denials cost?

Authorization-related denials including CARC 197 account for roughly 8% of all claim denials, with individual denials averaging $1,200 to $8,000 depending on the service type.