Denial Code CO-22: Description, Meaning and How to Fix It
Another insurer should be billed first under coordination of benefits.
Official description
This care may be covered by another payer per coordination of benefits.
Common cause
Wrong primary/secondary order, or the patient has other coverage the payer knows about.
How to fix it
Verify COB order during eligibility, bill the correct primary payer first, then submit to this payer with the primary's remittance.
Related denial codes
- CO-24: The service is covered under a capitation or managed-care arrangement, not fee-for-service.
- 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.
- CO-29: The claim was submitted after the payer's filing deadline.