Remark Code N386 on Your EOB — Meaning & What to Do

Remittance Advice Remark Code (RARC)

What remark code N386 means: The decision was based on a national coverage policy (NCD).
What to do about remark code N386: Ask whether an appeal fits the national coverage policy.

Remark codes add detail to a claim decision. They appear alongside the main adjustment codes on your Explanation of Benefits or remittance notice, giving the specific reason behind remark code N386.

Seeing remark code N386 on your EOB?
A denial code tells you what the payer reported, but it may not tell the whole story. Reviewing your EOB and bill together can help clarify what may need attention.

Check My EOB

Related codes

RARC N381There's a contract-specific reason for this adjustment. RARC N418The claim was sent to the wrong payer or contractor. RARC N362The number of days or units billed is more than usually allowed. RARC N435This exceeds the outpatient limit for a benefit period.

Keep reviewing your bill

Frequently asked questions about Remark code N386

What does remark code N386 mean on my EOB?

The decision was based on a national coverage policy (NCD).

What should I do about remark code N386?

Ask whether an appeal fits the national coverage policy.

Seeing this code on your own EOB?
Upload the EOB, the bill, or both — MD Bill Check reads the codes on your documents, compares them side by side, and flags what's worth questioning. Free, no account needed.

Check My Bill & EOB

Last reviewed 2026-07-07 · MDBillCheck Editorial Team. Plain-English explanations are original wording; always verify the specific reason with your insurer.