CO-285Contractual ObligationAppeals
CO-285 Denial Code: Appeal procedures not followed
The appeal was rejected on process grounds — wrong form, wrong channel, missing elements — not on the merits.
Why CO-285 happens
- ●Appeal sent to the wrong address/department
- ●Required appeal form or elements missing
How to fix a CO-285 denial
- 1
Refile correctly per the payer's appeal guide — process defects usually don't consume your appeal levels if refiled timely
How to prevent it
Maintain payer-specific appeal checklists (form, address, required attachments).
Drowning in CO-285 denials?
OakClaim works every denial within 48 hours and builds prevention rules so they stop recurring.