CO-236Contractual ObligationCoding
CO-236 Denial Code: Procedure combination not compatible
This procedure or procedure/modifier combination is not compatible with another procedure or procedure/modifier combination provided on the same day per coding guidelines.
Why CO-236 happens
- ●NCCI procedure-to-procedure conflict on same-day services
- ●Mutually exclusive codes billed together
How to fix a CO-236 denial
- 1
Review NCCI edits for the code combination
- 2
Rebill with appropriate modifier only if clinically distinct and documented
How to prevent it
Same-day compatibility edits in your scrubber.
Drowning in CO-236 denials?
OakClaim works every denial within 48 hours and builds prevention rules so they stop recurring.