OA-129Other AdjustmentCoordination of Benefits
OA-129 Denial Code: Prior processing information incorrect
The payer believes information from prior processing (an earlier payer or earlier adjudication) is wrong — the accompanying remark code says what.
Why OA-129 happens
- ●COB data from the primary payer keyed incorrectly on the secondary claim
- ●Corrected claim referencing the wrong original
How to fix a OA-129 denial
- 1
Read the paired remark code, correct the referenced processing data, and resubmit
How to prevent it
Transmit COB electronically from the primary 835 rather than rekeying.
Drowning in OA-129 denials?
OakClaim works every denial within 48 hours and builds prevention rules so they stop recurring.