CO-14Contractual ObligationEligibility
CO-14 Denial Code: Date of birth after the date of service
The patient's date of birth on the claim comes after the service date — an impossibility that stops adjudication.
Why CO-14 happens
- ●DOB keyed with the wrong year or transposed digits
- ●Newborn billed under an incomplete registration record
- ●Wrong patient account selected
How to fix a CO-14 denial
- 1
Correct the DOB in the PM system and resubmit
- 2
For newborns, confirm enrollment under the correct policy (mother's vs own) before rebilling
How to prevent it
Registration-time DOB validation and card scanning eliminate these.
Drowning in CO-14 denials?
OakClaim works every denial within 48 hours and builds prevention rules so they stop recurring.