What OA-23 means
This adjustment reflects what the primary payer already paid or adjusted. Usually informational on secondary claims.
Common causes
- Secondary claim processed after primary payment
How to fix it
- Review whether a balance remains for the patient
- No action if the amounts are correct
Check the remark code (RARC) that came with the denial and the payer's own policy, since rules vary by payer and plan. This is a plain-English summary written by GetMax; the official code text is published by X12 at x12.org/codes.
Prevent it next time
Most denials are caused before the claim is sent. See 12 ways to reduce claim denials, or let our denial management team work them for you.