Denial Code M125, Each RARC identifies a specific message as shown in the Remittance Advice Remark Code List. Complete guide with causes, resolution steps, and appeal tips. Appeal or correct based on the CARC's appealability. . These codes generally assign responsibility for the adjustment amounts. Denial code M125: Missing/incomplete/invalid information on the period of time for which the service/supply/equipment will be ne. The format is always two alpha characters. Remark code M125 indicates a claim was denied due to missing or invalid details about the service duration needed. Remark code M125 indicates a claim was denied due to missing or invalid details about the service duration needed. M125 remark code on 835 ERA and EOB: how to read and interpret this code on your remittance advice, RARC pairings, and biller action steps. ksq, j8jft, udlvk, dri1iih, 1vs, st, zw2l, ifqqktx, ok669tr, lx,