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89
CO - Contractual ObligationCoding/Billing
Denial Code CO-89: Charges Adjusted - Professional Component
What Does Code 89 Mean?
Services denied at the time of adjudication because the professional component was already billed or included in another service.
Group Code CO (Contractual Obligation): The provider has agreed to accept the payer's determination. The patient is generally not responsible for this amount.
Why Does This Happen?
Professional and technical component billing conflict.
How to Resolve It
- 1Review modifier -26 (professional) vs -TC (technical) usage
- 2Ensure components are not being double-billed
- 3Resubmit with correct component modifier
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