December 14, 2023
CWF "Dark Days” – December 15-17
Due to a system migration, the Common Working File (CWF) Host will observe Dark Days on Friday, December 15th through Sunday, December 17th.
What this means to you:
- Claims submitted during this period may process one day later than usual.
- You may access beneficiary eligibility information through the myCGS® portal or Interactive Voice Response (IVR) system, but the information will not update during the dark day period.
Home Health and Hospice providers: You can still submit Notices of Admission (NOAs) and Notices of Election (NOEs) during this period. If you feel the dark day period caused a late NOA/NOE submission, you must provide the appropriate supporting documentation with the associated final claim.

