CO-110Contractual ObligationDocumentation
CO-110 Denial Code: Billing date predates service date
The billing date is earlier than the date of service.
Why CO-110 happens
- ●Keying error in DOS or claim date
How to fix a CO-110 denial
- 1
Correct the dates and resubmit
How to prevent it
Date-logic edits at charge entry.
Drowning in CO-110 denials?
OakClaim works every denial within 48 hours and builds prevention rules so they stop recurring.