M120Remark Code (RARC)Deactivated
Effective 01/01/1997 · Stopped 06/02/2005

M120 Remark Code (Deactivated)

M120 is a retired remittance advice remark code. Payers stopped using it on 06/02/2005.

Seeing M120 on a Remittance?

  • M120 was retired effective 06/02/2005 and should not appear on new remittances.
  • If M120 appears on an old ERA you are reworking, interpret it per the remittance date, then follow the current code's guidance for any corrected claim.