Denial code · Contractual Obligation (CO)
CO-31 denial code
The payer cannot match the person on the claim to a person it covers.
What the code means
Official meaning: Patient cannot be identified as our insured.
In plain words: The payer cannot match the person on the claim to a person it covers.
The usual fix
Check the name, date of birth, and member number on the claim against the payer's card, fix any error, and send the claim again corrected.
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.