N631Remark Code (RARC)Active
Effective 07/15/2013

N631 Remark Code - Medical Fee Schedule Explanation

The N631 remark code indicates that the billed procedure code is not found in the medical fee schedule. Instead, the payer has provided an allowance for a comparable service that is listed.

How It Relates to the Denial

Typically, the N631 remark code appears alongside a Claim Adjustment Reason Code that indicates a denial or reduction based on fee schedule criteria. This combination signals that while the specific code was not covered, a similar service was recognized for reimbursement.

Common Scenarios

1A provider billed for a specific procedure code not listed in the payer's fee schedule, such as a unique therapy service, and received an adjustment on the remittance advice.
→ The N631 remark code clarifies that although the billed code is not recognized, the payer has adjusted the claim based on a similar service that is covered.
2A claim for a new diagnostic code was submitted, but the remittance response indicated an adjustment with a reason code for non-coverage.
→ The appearance of the N631 remark code suggests that the payer does not recognize the specific diagnostic code but has compensated for a related code that is included in their fee schedule.
3A provider submitted a claim for a specialized surgical procedure not typically covered, resulting in a partial payment noted in the remittance.
→ The N631 remark code indicates that while the surgical procedure code was not listed, the payer allowed payment based on a comparable procedure that does have coverage.

What to Do

  1. Review the explanation of benefits (EOB) for the original claim adjustment reason code.
  2. Verify that the billed code is indeed not listed in the payer's medical fee schedule.
  3. Consider resubmitting the claim with a different, covered procedure code if appropriate.

What to Check

  • The payer's medical fee schedule to confirm the status of the billed procedure code.
  • The claim adjustment reason code that accompanies the N631 remark code for full context.
  • Documentation supporting the medical necessity of the service provided, in case of further appeals.