RARC Code
M21
Remark CodeGeneral
Missing/incomplete/invalid place of residence for this service/item provided in a home.
What This Means
RARC codes (Remittance Advice Remark Codes) are supplementary explanations added to an EOB alongside a CARC denial code. RARC M21 is a General-level remark. It does not stand alone — look for the associated CARC code on the same claim line to understand the primary reason for denial or adjustment.
Common 835 Combinations
RARC M21 most frequently appears in these combinations on 835 remittances.
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