Remark Code M39 on Your EOB — Meaning & What to Do

Remittance Advice Remark Code (RARC)

What remark code M39 means: This service isn't covered because it's considered routine.
What to do about remark code M39: Check whether it should be billed as preventive.

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 M39.

Related codes

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Frequently asked questions about Remark code M39

What does remark code M39 mean on my EOB?

This service isn't covered because it's considered routine.

What should I do about remark code M39?

Check whether it should be billed as preventive.

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