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199
CO - Contractual ObligationCoding/Billing
Denial Code CO-199: Revenue Code Not Valid for This Service
What Does Code 199 Mean?
Revenue code and procedure code do not match or revenue code is not valid for the service billed on this institutional claim.
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?
Mismatch between the revenue code and the procedure code on a UB-04 claim.
How to Resolve It
- 1Review revenue code to CPT/HCPCS mapping
- 2Correct the revenue code to match the service
- 3Resubmit the corrected institutional claim
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