Which denial codes appear with N180?

N180 commonly rides with CO 50, PR 96. The adjustment code says the claim was reduced; the remark code says why.

Remark code

N180 denial code

The payer says what you billed does not qualify for the billing category you put it under.

Find out which, first

A remark code is not the denial. The adjustment code says the claim was reduced. This one says why. You need both to know what to send back.

What to do

Get the payer's criteria for that category and compare the record against each one. If the item or service meets them, appeal with the records that show each criterion is met. If it fits a different category, correct the code and resubmit instead.

Codes it appears with

N180 commonly rides alongside these. Our reading, not a published mapping: X12 publishes no adjustment-to-remark table.

Code	What that one means
CO 50	The payer decided the service was not medically necessary.
PR 96	Not a covered charge under this plan.

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