June 1, 2023
July 2023 Release "Dark Days”
To accommodate the anticipated duration to install the July 2023 release, the Common Working File (CWF) Host will observe a Gray Day on Thursday, June 29th and Dark Days on Friday, June 30th through Sunday, July 2nd.
What this means to you:
- It is customary for contractors to hold claims for several days following a quarterly release. Claims submitted during this period will not continue to process until the nightly system cycle runs on Monday, July 3rd.
- We anticipate claims will still process within a normal timeframe and these slight delays will not affect the timeliness of your payments.
- You can still access beneficiary eligibility information through the myCGS® portal or the 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.

