Remittance advice remark code
Remark code M15 meaning
RARC M15: The services billed separately were combined because the payer sees them as parts of the same procedure.
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- Remark code
- RARC M15
- Short name
- Bundled as parts of one procedure
- Plain meaning
- The services billed separately were combined because the payer sees them as parts of the same procedure.
- Kind
- Adds detail to the reason code on the same line.
Plain-English summary written by Rivvi. X12 owns the RARC list and its exact wording, which is not reproduced here. Read it on the X12 RARC list (list dated July 1, 2026, checked October 23, 2026). This page does not decide how a claim is paid.
What to check before resubmitting
- Check NCCI edits for the code pair.
- Bill the separate service only when it was distinct and documented, with the right modifier.
Reason codes it often comes with
Related remark codes
Related pages
Questions
What does remark code M15 mean?
The services billed separately were combined because the payer sees them as parts of the same procedure. This is Rivvi's plain-English summary of RARC M15. X12's exact wording is on x12.org.
What should I do about M15?
Check NCCI edits for the code pair. Bill the separate service only when it was distinct and documented, with the right modifier.
Is M15 a denial?
A remark code adds detail to the reason code on the same line. The reason code (CARC) and its group code decide what was denied or adjusted. It is often paired with reason codes 97, 234.
What is the difference between a RARC and a CARC?
A remittance advice remark code (RARC) adds detail to a claim adjustment reason code (CARC). The CARC says why the line was adjusted. The RARC often says what to fix.