N823
RARC
N823: Incomplete/Invalid procedure modifier(s).
The official meaning of remittance advice remark code N823 is below. We have not written a plain-English translation for this code yet; the search box on the translator covers the codes practices see most often.
How to use this code
A remark code explains the reason code next to it. Fix the item it names (a field, a document, a provider identifier) and send a corrected claim, or respond to the payer's request for information. Appeal only when the claim was right as sent.