N386Remark Code (RARC)Active
Effective 04/01/2007 · Updated 03/01/2026

N386 Remark Code - National Coverage Determination Info

The N386 remark code indicates that the payer's decision regarding the claim was influenced by a National Coverage Determination (NCD). This means that the item or service billed is subject to specific coverage criteria set forth by Medicare, which can affect whether payment is made.

How It Relates to the Denial

The N386 remark typically accompanies a Claim Adjustment Reason Code that indicates a denial or reduction due to coverage issues. Together, they signal that the service in question was evaluated against Medicare's established guidelines and found not to meet the necessary criteria for coverage.

Common Scenarios

1A provider submits a claim for a specific diagnostic test, but the remittance response includes a denial with a claim adjustment reason code stating the service is not covered.
→ The presence of the N386 remark code clarifies that the denial was made based on a specific National Coverage Determination, suggesting that the service is not covered under Medicare guidelines.
2A hospital bills for a surgical procedure that was performed, but the payer denies the claim citing a lack of medical necessity.
→ The N386 remark indicates that the denial is grounded in a National Coverage Determination, meaning the procedure may not be covered unless certain criteria are met.
3A claim for a durable medical equipment (DME) item is submitted, but the remittance shows a reduction in payment with a reason code related to coverage limitations.
→ The N386 remark code points out that the coverage determination for the DME item was made based on an NCD, indicating that specific guidelines dictate its coverage.

What to Do

  1. Review the specific Claim Adjustment Reason Code on the remittance to understand the context of the denial or adjustment.
  2. Check the National Coverage Determination related to the service in question to confirm coverage criteria.
  3. Prepare any necessary documentation or additional information that may support the claim according to the NCD guidelines.

What to Check

  • The Claim Adjustment Reason Code that accompanies the N386 remark to identify the nature of the adjustment.
  • The National Coverage Determination policy on the CMS.gov website to understand the coverage criteria.
  • The clinical documentation submitted with the claim to ensure it aligns with NCD requirements.