CO-181Contractual ObligationCoding
CO-181 Denial Code: Procedure code invalid on date of service
The procedure code was invalid on the date of service reported.
Why CO-181 happens
- ●Deleted or replaced CPT/HCPCS code billed after its end date
- ●New code billed before its effective date
How to fix a CO-181 denial
- 1
Look up the valid code for the DOS in the current code set
- 2
Correct and resubmit
How to prevent it
Update code sets in your PM/EHR immediately on quarterly/annual releases.
Drowning in CO-181 denials?
OakClaim works every denial within 48 hours and builds prevention rules so they stop recurring.