N418N-series (general use)Provider Identifiers
N418: Misrouted claim — wrong payer address/system
The claim went to the wrong payer entity, region, or claims system — right family, wrong door (common with payer subsidiaries and carve-outs).
Commonly appears with these denial codes
The denial code gives the category; N418 pinpoints the specific problem. Read them together before touching the claim.
What to do about it
Check the member card for the correct claims address/payer ID (behavioral health, vision, and pharmacy carve-outs are frequent traps) and resubmit to the right entity. Timely filing usually restarts from proof of original submission — keep it.
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