CO-239Contractual ObligationEligibility
CO-239 Denial Code: Claim spans eligible/ineligible periods — rebill separately
Same straddle problem as 238, but the payer wants you to split it: separate claims for the eligible and ineligible periods.
Why CO-239 happens
- ●Single claim covering dates on both sides of a coverage boundary
How to fix a CO-239 denial
- 1
Split the claim at the coverage boundary and resubmit the eligible-period claim
How to prevent it
Split billing periods automatically at known coverage change dates.
Drowning in CO-239 denials?
OakClaim works every denial within 48 hours and builds prevention rules so they stop recurring.