Returned or rejected as unprocessable claims affect timely filing
Per Medicare guidelines, claims must be filed with the appropriate Medicare claims processing contractor no later than 12 months (one calendar year) after the date of service (DOS). Claims must be processed (paid, denied or rejected) by Medicare to be considered filed or submitted. Claims with missing, invalid or incomplete information preventing Medicare from processing them, also known as “returned or rejected as unprocessable claims (RUCs),” are not considered filed or submitted. RUCs must be corrected and resubmitted for processing. Claims submitted after one calendar year from the DOS will be denied or rejected. Timely filing for Part B claims is determined by the “from date.”
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