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Denial Code A8

CARC A8: Ungroupable DRG

This is a Claim Adjustment Reason Code (CARC). CARCs explain why a payer adjusted or denied a claim line and appear with a group code (CO, PR, OA, PI). Codes appear on the EOB / ERA after a claim is adjudicated.

Reference only — CARC/RARC are national code sets updated periodically. Verify against the current official list before acting on a denial or appeal.

Related CARC codes

A1
Claim/Service denied. Remark code required
A5
Medicare Claim PPS Capital Cost Outlier Amount
A6
Prior hospitalization or 30 day transfer requirement not met
B1
Non-covered visits
B4
Late filing penalty
B7
This provider was not certified/eligible to be paid for this procedure/service on this dat…

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