M119M-series (Medicare line-level)Missing Information
M119: NDC missing or invalid
The National Drug Code is missing, invalid, or withdrawn — required on most drug claims, especially Medicaid and physician-administered drugs.
Commonly appears with these denial codes
The denial code gives the category; M119 pinpoints the specific problem. Read them together before touching the claim.
What to do about it
Bill the 11-digit NDC in 5-4-2 format matching the actual product administered, with correct unit of measure and quantity, then resubmit.
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