CO-250Contractual ObligationDocumentation
CO-250 Denial Code: Wrong attachment received
Documentation arrived but it was the wrong document — the expected attachment is still missing.
Why CO-250 happens
- ●Wrong patient's records or wrong date-of-service documentation sent
- ●Partial record sent where a specific report was requested
How to fix a CO-250 denial
- 1
Identify exactly what was expected (remark code / call), send the correct document referencing the claim
How to prevent it
Match documentation requests to specific documents before sending, not 'send the chart'.
Drowning in CO-250 denials?
OakClaim works every denial within 48 hours and builds prevention rules so they stop recurring.