Coordination of Benefits

CARC/RARC Description
CO-22 This care may be covered by another payer per coordination of benefits.
N598 Health care policy coverage is primary.

Common Reasons for Message

  • Patient has another insurance primary to Medicare
  • Patient's coordination of benefits is not up-to-date

Next Step

  • After billing primary insurance, submit secondary claim to Medicare
  • If patient's coordination of benefits has been updated to reflect Medicare as primary, submit primary claim to Medicare
  • If patient's insurance needs to be updated, the beneficiary may contact Benefits Coordination

Claim Submission Tips

Last Updated Apr 01 , 2024