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209
CO - Contractual ObligationCoverage
Denial Code CO-209: Per Day Limit Exceeded
What Does Code 209 Mean?
Payment adjusted because the per-day limit for this procedure or service has been exceeded. Only a certain number of units per day is covered.
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?
More units were billed than the payer allows per day for this service.
How to Resolve It
- 1Verify the payer's per-day unit limit
- 2If medically necessary, appeal with clinical justification
- 3Ensure accurate unit reporting on the claim
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