CO-61Contractual ObligationAuthorization
CO-61 Denial Code: No second surgical opinion obtained
The plan required a second surgical opinion before this procedure and reduced or denied payment because it wasn't obtained.
Why CO-61 happens
- ●Plan's SSO requirement missed during scheduling
- ●Second opinion obtained but never documented to the payer
How to fix a CO-61 denial
- 1
If an opinion exists, submit the documentation and appeal
- 2
Otherwise request the payer's reconsideration options; the reduction usually stands
How to prevent it
Capture second-opinion requirements in your prior-auth workflow for surgical plans that mandate them.
Drowning in CO-61 denials?
OakClaim works every denial within 48 hours and builds prevention rules so they stop recurring.