CO-204 Denial Code: Description, Causes, and How to Fix It
The CO-204 denial code appears on your 835 Electronic Remittance Advice (ERA) or Explanation of Benefits (EOB) when a payer determines that the billed service, equipment, or drug isn’t covered under the patient’s current benefit plan. The official X12 definition of CARC 204 is: “This service/equipment/drug is not covered under the patient’s current benefit plan.” […]
