CO-27Contractual Adjustment
Expenses incurred after coverage ended
What this code means
Your coverage had ended by the time this service was performed. The insurer will not pay for services after your termination date.
What to do next
Verify your termination date. If you had COBRA or a qualifying event that should have extended coverage, provide documentation. If coverage truly ended, check whether you qualify for retroactive enrollment.
Appeal outlook: Low unless coverage termination was in error
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