Denial Code CO-27: Description, Meaning and How to Fix It
The patient's coverage had ended before the date of service.
Official description
Expenses incurred after coverage terminated.
Common cause
Coverage lapsed or terminated and eligibility was not re-verified close to the visit.
How to fix it
Verify the correct active coverage for the date of service, bill the right payer, or bill the patient if no coverage applies.
Related denial codes
- CO-31: The payer cannot match the patient to a member record.
- CO-140: The member ID and patient name on the claim do not match the payer's records.
- CO-45: The amount billed is higher than the payer's contracted (allowed) rate. The difference is a contractual write-off, not a patient balance.
- CO-16: The claim is missing required information or has an error. It is almost always paired with a RARC that names the specific missing field.
- CO-97: This service is bundled into another service that was already paid, so it is not paid separately.
- CO-18: The payer received this exact claim/service already.