CARC 101: Predetermination — anticipated payment upon completion of services or claim adjudication.
Predetermination — anticipated payment upon completion of services or claim adjudication.
CARC 101 appears on the 835 ERA (Electronic Remittance Advice) that the payer returns after claim adjudication. It explains a reduction, denial, or payment adjustment to your billing team. For your practice, the question is workflow: identify the pattern, route the denial to the right resolution path (rebill, appeal, write-off), and recover what's recoverable without burning RVU time on dead-end fights.
What CARC 101 means
The official X12 description is: “Predetermination — anticipated payment upon completion of services or claim adjudication.”
In plain language: Predetermination — anticipated payment upon completion of services or claim adjudication.
Practice workflow for CARC X 101
Verify the EOB details. If you believe the code is misapplied, contact the carrier's member services or your provider's billing office.
CARC 101 group codes explained
On the 835 ERA, CARC 101 appears alongside a group code that signals who is financially responsible for the adjustment. OA (Other Adjustment) — Informational or coordination-related adjustment. Usually means another payer is involved or there's a non-claim-related accounting entry.
Frequently asked questions
What does CARC 101 mean?
Predetermination — anticipated payment upon completion of services or claim adjudication. In plain language: Predetermination — anticipated payment upon completion of services or claim adjudication.
Is CARC 101 appealable?
CARC 101 is usually not appealable on its own — it's typically a contractual, informational, or routine adjustment. Verify the EOB details. If you believe the code is misapplied, contact the carrier's member services or your provider's billing office.
Which group code does CARC 101 appear under?
CARC 101 most often appears under: OA (Other Adjustment) — Informational or coordination-related adjustment. Usually means another payer is involved or there's a non-claim-related accounting entry.
What should I do if I see CARC 101 on the 835?
Verify the EOB details. If you believe the code is misapplied, contact the carrier's member services or your provider's billing office.
Related resources
Sources
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