Remittance advice remark code
Remark code N386 meaning
RARC N386: The decision was based on a Medicare National Coverage Determination (NCD).
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- Remark code
- RARC N386
- Short name
- Decision based on a National Coverage Determination
- Plain meaning
- The decision was based on a Medicare National Coverage Determination (NCD).
- 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
- Look up the NCD in the Medicare Coverage Database.
- Check the covered conditions and frequency rules.
Reason codes it often comes with
Related remark codes
Related pages
Questions
What does remark code N386 mean?
The decision was based on a Medicare National Coverage Determination (NCD). This is Rivvi's plain-English summary of RARC N386. X12's exact wording is on x12.org.
What should I do about N386?
Look up the NCD in the Medicare Coverage Database. Check the covered conditions and frequency rules.
Is N386 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 50, 11, 167.
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.