CO-8 Denial Code: The Procedure Code Is Inconsistent With the Provider Type or Specialty (Taxonomy)
A CO-8 denial code fires when the procedure you billed doesn’t match the provider type or specialty, the taxonomy, that the payer has on file for that NPI. Because the adjustment carries group code CO, Contractual Obligation, the balance becomes your write-off and you can’t bill the patient for it. The mismatch usually sits in […]