Remittance advice remark code
Remark code N674 meaning
RARC N674: The service is not covered unless a required earlier service was provided.
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- Remark code
- RARC N674
- Short name
- Needs a prerequisite service
- Plain meaning
- The service is not covered unless a required earlier service was provided.
- 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 that the prerequisite service was done and billed.
Reason codes it often comes with
Related remark codes
Related pages
Questions
What does remark code N674 mean?
The service is not covered unless a required earlier service was provided. This is Rivvi's plain-English summary of RARC N674. X12's exact wording is on x12.org.
What should I do about N674?
Check that the prerequisite service was done and billed.
Is N674 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 B15, 107.
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.