CO-158Contractual ObligationContractual
CO-158 Denial Code: Service provided outside the United States
The plan doesn't cover services rendered outside the U.S. (or requires its travel-benefit process).
Why CO-158 happens
- ●Foreign place of service on a domestic-only plan
How to fix a CO-158 denial
- 1
Check for travel/emergency-abroad benefits; otherwise patient responsibility per plan terms
How to prevent it
Flag foreign service locations during registration for benefit verification.
Drowning in CO-158 denials?
OakClaim works every denial within 48 hours and builds prevention rules so they stop recurring.