CO-210Contractual ObligationAuthorization
CO-210 Denial Code: Pre-certification not received timely
Authorization existed or was requested, but notification/pre-cert didn't reach the payer within its required timeframe.
Why CO-210 happens
- ●Urgent admission notification sent after the 24–48h window
- ●Auth obtained but not linked/communicated before claim submission
How to fix a CO-210 denial
- 1
Appeal with proof of timely notification attempts or the clinical urgency
- 2
Request retro-authorization where payer policy allows
How to prevent it
Automate admission notifications — the window is hours, not days.
Drowning in CO-210 denials?
OakClaim works every denial within 48 hours and builds prevention rules so they stop recurring.