CARC 135: Interim bills cannot be processed.
Interim bills cannot be processed.
CARC 135 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 135 means
The official X12 description is: “Interim bills cannot be processed.”
In plain language: Interim bills cannot be processed.
What to do next 135
Verify the EOB details. If you believe the code is misapplied, contact the carrier's member services or your provider's billing office.
CARC 135 group codes explained
On the 835 ERA, CARC 135 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 135 mean?
Interim bills cannot be processed. In plain language: Interim bills cannot be processed.
Is CARC 135 appealable?
CARC 135 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 135 appear under?
CARC 135 most often appears under: CO (Contractual Obligation) — Contractual write-off. The provider agreed to the rate. Patient does NOT owe this amount.
What should I do if I see CARC 135 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.
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