Which denial codes appear with MA130?

MA130 commonly rides with CO 16, CO 4. The adjustment code says the claim was reduced; the remark code says why.

Remark code

MA130 denial code

The claim was unprocessable, so it was never adjudicated and carries no appeal rights at all.

A correction, not an appeal

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

Submit a NEW, corrected claim. Do not appeal: there is no decision to appeal against, an appeal will be rejected, and the timely filing clock keeps running on the original service while you wait for that rejection. This is one of the most expensive misreadings on a remit.

Codes it appears with

MA130 commonly rides alongside these. Our reading, not a published mapping: X12 publishes no adjustment-to-remark table.

Code	What that one means
CO 16	Something the payer needed was missing or wrong on the claim.
CO 4	The procedure code and the modifier do not agree.

Upload your denial export 4 columns. No patient data. One page back.