Which CARC codes does RARC M42 appear with?

RARC M42 commonly appears with CARC codes: 5, 58.

RARC Code

M42

Q: What does RARC M42 mean?

RARC M42 means: The medical necessity form must be personally signed by the attending physician.

Remark CodeGeneral

The medical necessity form must be personally signed by the attending physician.

What This Means

RARC codes (Remittance Advice Remark Codes) are supplementary explanations added to an EOB alongside a CARC denial code. RARC M42 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.

Commonly Paired With

RARC M42 most frequently appears alongside these CARC codes. Click through for the full resolution playbook.

CARC 5 CARC 58

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