OA-23: Impact of prior payer adjudication
UPDATED JULY 2026 · U.S. PLANS · NOT LEGAL OR MEDICAL ADVICE
An informational adjustment showing how the primary insurer's payment affected this secondary claim. Usually not a denial at all.
OA-23 at a glance
- Code group: OA — Other Adjustment — usually informational.
- Who usually fixes it: The provider’s billing office.
- Worth appealing? Rarely — usually fixed by resubmission.
What to do about a OA-23 denial
- Read the EOB alongside the primary payer's EOB — the numbers should reconcile.
- Question the secondary payer if benefits you expected weren't applied.
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