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206
CO - Contractual ObligationCoding/Billing
Denial Code CO-206: NPI Missing
What Does Code 206 Mean?
National Provider Identifier - missing. The required NPI was not included on the claim submission.
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?
The rendering or billing provider's NPI was not on the claim.
How to Resolve It
- 1Add the correct NPI to the claim
- 2Verify the NPI is active at nppes.cms.hhs.gov
- 3Resubmit with the NPI included
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