Remittance advice remark code
Remark code M16 meaning
RARC M16: The payer is telling you to read its website, mailings or bulletins for more on this policy or decision.
Run it in Rivvi
Check the codes behind a denial
Upload a claims export. Rivvi flags ICD-10 and HCPCS codes that are not billable, replaced, or unspecified when a specific code exists.
Check my exportFree to start. Opens Rivvi, the AI workspace for healthcare teams.
- Remark code
- RARC M16
- Short name
- See the payer's notices for this policy
- Plain meaning
- The payer is telling you to read its website, mailings or bulletins for more on this policy or decision.
- Kind
- Alert. Information only, not a denial by itself.
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
- Search the payer's site or your Medicare contractor's site for the policy that applies.
Reason codes it often comes with
Related remark codes
Related pages
Questions
What does remark code M16 mean?
The payer is telling you to read its website, mailings or bulletins for more on this policy or decision. This is Rivvi's plain-English summary of RARC M16. X12's exact wording is on x12.org.
What should I do about M16?
Search the payer's site or your Medicare contractor's site for the policy that applies.
Is M16 a denial?
M16 is an informational remark (an alert). It does not deny the claim by itself. It is often paired with reason codes 96, 50.
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.