CARC 197: Precertification/authorization/notification/pre-treatment absent.
Prior authorization was required but wasn't obtained before the service. The carrier won't pay.
CARC 197 is the code your insurance company used to explain why your claim was reduced, denied, or paid less than expected. It appears on your Explanation of Benefits (EOB) — the statement your plan sends after a claim is processed. Here's what it means for you and what you can do about it.
What CARC 197 means
The official X12 description is: “Precertification/authorization/notification/pre-treatment absent.”
In plain language: Prior authorization was required but wasn't obtained before the service. The carrier won't pay.
Common scenarios
- Emergency procedure
- Provider mistakenly thought PA wasn't required
- Plan changed PA requirements mid-year
- PA denied but service was clinically urgent
What to do next 197
Appeal with: (a) proof the auth was attempted (call logs, dates), (b) the medical urgency that justified proceeding, (c) the clinical evidence supporting the service. Many states require retrospective PA review for emergency or urgent services. NSA also restricts surprise PA denials.
DenialHelp helps organize a source-linked draft from the denial notice and confirmed case facts. The patient and treating clinician must verify the governing review rule, current payer policy, clinical sources, attachments, destination, and deadline.
CARC 197 group codes explained
On the 835 ERA, CARC 197 appears alongside a group code that signals who is financially responsible for the adjustment. CO (Contractual Obligation) — Contractual write-off. The provider agreed to the rate. Patient does NOT owe this amount.
Frequently asked questions
What does CARC 197 mean?
Precertification/authorization/notification/pre-treatment absent. In plain language: Prior authorization was required but wasn't obtained before the service. The carrier won't pay.
Is CARC 197 appealable?
Yes — CARC 197 is one of the codes that commonly supports an appeal. Appeal with: (a) proof the auth was attempted (call logs, dates), (b) the medical urgency that justified proceeding, (c) the clinical evidence supporting the service. Many states require retrospective PA review for emergency or urgent services. NSA also restricts surprise PA denials.
Which group code does CARC 197 appear under?
CARC 197 most often appears under: CO (Contractual Obligation) — Contractual write-off. The provider agreed to the rate. Patient does NOT owe this amount.
When does CARC 197 typically appear on a denial?
Common scenarios: Emergency procedure; Provider mistakenly thought PA wasn't required; Plan changed PA requirements mid-year; PA denied but service was clinically urgent.
How do I appeal a CARC 197 denial?
Appeal with: (a) proof the auth was attempted (call logs, dates), (b) the medical urgency that justified proceeding, (c) the clinical evidence supporting the service. Many states require retrospective PA review for emergency or urgent services. NSA also restricts surprise PA denials.
Related resources
Sources
Appeal a CARC 197 denial
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