RARCM78ReferenceHistorical / DeactivatedVerified Aug 15, 2026RARC M78
Historical / Deactivated code: Heads up
RARC M78 is no longer valid for current transactions. It may still appear on older remittance advices — treat it as reference for historical documents only.
No specific AR Guide workflow has been assigned yet
We haven’t written AR Guide notes for RARC M78 yet. The reference description in the sidebar is complete and sourced from ASC X12. Search the denial guides for the workflow you need.
Reference
Commonly paired CARCs
CARCs this remark commonly accompanies on the ERA/EOB, per the AR Guide pairing data.
CARC4The procedure code is inconsistent with the modifier used. Usage: Refer to the 835 Healthcare Policy Identification Segment (loop 2110 Service Payment Information REF), if present.CARC236This procedure or procedure/modifier combination is not compatible with another procedure or procedure/modifier combination provided on the same day according to the National Correct Coding Initiative or workers compensation state regulations/ fee schedule requirements.
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