CO-14
The date of birth follows the date of service
What This Code Means
Payer records show the patient’s date of birth is after the billed date of service, which is not possible.
Common Causes
- Data entry error in date of birth or date of service
How to Resolve or Appeal
- Verify and correct whichever date was entered incorrectly
- Resubmit as a corrected claim
Educational reference only — not medical or legal advice. Always confirm code usage and appeal rights with the specific payer.