CARC 201: Patient is responsible for amount of this claim/service through 'set aside arrangement' or other agreement.
Patient is responsible for amount of this claim/service through 'set aside arrangement' or other agreement.
CARC 201 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 201 means
The official X12 description is: “Patient is responsible for amount of this claim/service through 'set aside arrangement' or other agreement.”
In plain language: Patient is responsible for amount of this claim/service through 'set aside arrangement' or other agreement.
Practice workflow for CARC X 201
Verify the EOB details. If you believe the code is misapplied, contact the carrier's member services or your provider's billing office.
CARC 201 group codes explained
On the 835 ERA, CARC 201 appears alongside a group code that signals who is financially responsible for the adjustment. PR (Patient Responsibility) — Patient owes this amount. Deductibles, coinsurance, copays, and excluded benefits land here.
Frequently asked questions
What does CARC 201 mean?
Patient is responsible for amount of this claim/service through 'set aside arrangement' or other agreement. In plain language: Patient is responsible for amount of this claim/service through 'set aside arrangement' or other agreement.
Is CARC 201 appealable?
CARC 201 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 201 appear under?
CARC 201 most often appears under: PR (Patient Responsibility) — Patient owes this amount. Deductibles, coinsurance, copays, and excluded benefits land here.
What should I do if I see CARC 201 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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