CO-26Contractual Adjustment
Expenses incurred prior to coverage
What this code means
The service was performed before your insurance coverage started. The insurer will not cover services that occurred before your effective date.
What to do next
Verify your coverage start date. If the service occurred after your start date and the insurer has the wrong date, provide proof of your enrollment. If the service truly was before coverage, you are responsible for the bill.
Appeal outlook: Low unless enrollment date is incorrect
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