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MA119 Remark Code (Deactivated): Late Filing Adjustment

MA119 meant a provider-level adjustment for late claim filing applied to this claim. X12 deactivated it and suggested reason code B4, the late filing penalty.

X12 deactivated RARCMA119 on May 1, 2008. Payers should no longer use it on new remittances, but it can still appear on older ERAs, corrected claims, and appeals.

Quick facts

Code
MA119 (RARC MA119)
Status
Deactivated StoppedMay 1, 2008 (in use since January 1, 1997).
Code set
Remittance Advice Remark Codes (RARC)
Group codes
  • CO (Contractual Obligation): The late filing reduction was the provider's responsibility, not the patient's.
Official description
Provider level adjustment for late claim filing applies to this claim.
X12 Remittance Advice Remark Codes, retrieved September 25, 2026
Last verified
against the official X12 list.

What MA119 meant

Some payers reduce payment when a claim is filed late but still within the window they accept. Remark MA119 explained that such a reduction, calculated at the provider level, applied to the claim. It told the provider why the payment was lower than expected.

What replaced it

X12’s note suggested reason code B4. CO-B4 is the active late filing penalty code and reports the reduction directly. When a claim misses the deadline entirely, payers use CO-29.

If you still see MA119

It stayed in use until the late 2000s, so it may appear in older payment histories. Check the claim’s original submission and acceptance dates. If you filed on time and the penalty was applied in error, send proof and request reprocessing. Otherwise, post the reduction as a provider write-off and review your charge lag to prevent more penalties.

  • CO-B4 (Late filing penalty.): The suggested replacement: late filing penalty.
  • CO-29 (The time limit for filing has expired.): The time limit for filing has expired, used when the claim is denied outright.

MA119 FAQ

What is the difference between a late filing penalty and a timely filing denial?

A penalty reduces payment on a claim filed later than preferred but still accepted. A timely filing denial, CARC 29, means the claim arrived after the deadline and is not paid.

Can late filing penalties be reversed?

Sometimes, if you can show the claim was filed on time, for example with clearinghouse acceptance reports. Payers may also have exceptions for delays outside your control.