PR-229Patient ResponsibilityCoordination of Benefits
PR-229 Denial Code: Partial charge not considered by Medicare (TOB 12X)
COB-reporting code: the portion Medicare didn't consider due to the inpatient Part B billing situation — conveyed to secondary payers.
Why PR-229 happens
- ●Inpatient Part B (12X) billing scenarios reported to downstream payers
How to fix a PR-229 denial
- 1
Ensure the secondary receives correct COB amounts; this code carries context, not an error
How to prevent it
Informational within 837 COB — verify amounts map correctly.
Drowning in PR-229 denials?
OakClaim works every denial within 48 hours and builds prevention rules so they stop recurring.