FAQ Directory: HEDIS

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11.16.2023 Definition of “Unknown” reporting category for race and ethnicity values When can organizations report race and ethnicity as an “Unknown” value?

“Unknown” race and ethnicity values indicate missing data. Two criteria must be met to report “Unknown”: 

1. There is no recorded value, and  

2. The organization did not receive a declined response from the member. 

Starting in MY 2023, all “Unknown” values must be attributed to an unknown data source. This is a change from MY 2022, when “Unknown” values were attributed to an indirect data source.   

HEDIS MY 2023