Denial code · Contractual Obligation (CO)
CO-22 denial code
Another payer may have to pay first.
What the code means
Official meaning: This care may be covered by another payer per coordination of benefits.
In plain words: Another payer may have to pay first.
The usual fix
Find which payer is first in line, send the claim there first, then send it to this payer with the first payer's reply.
This is general information, not advice on a specific claim.
Learn on the job
Learn on the job with real denied claims.
Working denied claims is the medical claims desk's daily work. Read a code, find what is missing, fix the claim, or write the appeal.