FAQ Directory: HEDIS

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10.15.2017 ECDS How are ECDS different from supplemental data?

The ECDS reporting method uses much of the same data classified as supplemental for other HEDIS measures, but ECDS measures adhere to different reporting rules from those in other HEDIS domains. Unlike supplemental data used for HEDIS, data for ECDS reporting are classified by source and are used to report all measure elements (e.g., denominator, exclusions, numerator).

HEDIS 2018