Remark Code M119 on Your EOB — Meaning & What to Do

Remittance Advice Remark Code (RARC)

What remark code M119 means: The drug (NDC) code is missing, incomplete, or invalid.
What to do about remark code M119: Ask the provider's billing office to explain or correct this, and resubmit if needed.

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 M119.

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Frequently asked questions about Remark code M119

What does remark code M119 mean on my EOB?

The drug (NDC) code is missing, incomplete, or invalid.

What should I do about remark code M119?

Ask the provider's billing office to explain or correct this, and resubmit if needed.

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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.