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Denial Code 284

CARC 284: preauth/notification number may be valid but does not apply to the billed services

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

281
Deductible waived per contractual agreement. Use only with Group Code CO
282
The procedure/revenue code is inconsistent with the type of bill
283
Attending provider is not eligible to provide direction of care
285
Appeal procedures not followed
286
Appeal time limits not met
287
Referral exceeded

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