Data Errata for HEDIS® Data Submission

The data errata is a list of self-reported errors that were identified by organizations after the HEDIS data re-submission deadline of June 30th. Per NCQA’s HEDIS Volume 2, “organizations must immediately report any error in a measure rate or in its component (in any previous submission, regardless of timing) that is >5% higher or lower than what was reported originally.”

Errors are reviewed by NCQA to assess the impact to NCQA products and programs, including but not limited to Health Plan Ratings, Quality Compass and Accreditation. If the impact is determined to be significant, NCQA will notify customers via the data errata page and potential other avenues of communication such as the Quality Compass homepage.

Depending on the significance and scope of the error, NCQA takes the necessary actions. This data errata page lists the reported errors so that users of NCQA’s programs and products can see the description and resolution and consider any implications to their use of the data.

Note: The data errors listed below reflect corrections reported within the last four measurement years only.

Date ReportedHEDIS Measurement YearOrg IDOrganization NameProduct LinesMeasure NameDescription of ErrorResolution
4/24/2620241076Local Initiative Health Authority, dba L.A. Care Health PlanCommercialMultiple Measure Indicators were impacted by this data error.Erroneous logic resulted in under reporting of performance.Due to assessed level of impact, no product updates were made.
11/12/2025202413979Blue Cross and Blue Shield of Massachusetts, Inc.CommercialKidney Health Evaluation for Patients With Diabetes (KED)Erroneous logic resulted in over reporting of performanceDue to assessed level of impact, no product updates were made.
11/12/20252024174Blue Cross and Blue Shield of Massachusetts, Inc.CommercialKidney Health Evaluation for Patients With Diabetes (KED)Erroneous logic resulted in over reporting of performanceDue to assessed level of impact, no product updates were made.
11/12/25202413979Blue Cross and Blue Shield of Massachusetts, Inc.ExchangeKidney Health Evaluation for Patients With Diabetes (KED)Erroneous logic resulted in over reporting of performanceDue to assessed level of impact, no product updates were made.
6/9/20252023132Kaiser Foundation Health Plan Inc. - Southern CaliforniaExchangeINR - International Normalized Ratio Monitoring for Individuals on WarfarinErroneous logic resulted in over reporting of performanceDue to assessed level of impact, no product updates were made.
5/17/20252023192Health New EnglandExchangeMultiple Measure Indicators were impacted by this data error.Erroneous logic resulted in a combination of overreported and underreported performance rates.Due to assessed level of impact, no product updates were made.
5/16/20252023192Health New EnglandCommercialMultiple Measure Indicators were impacted by this data error.Erroneous logic resulted in a combination of overreported and underreported performance rates.Due to assessed level of impact, no product updates were made.
4/8/20252023284953Blue Cross and Blue Shield of Montana, a Division of Health Care Service Corporation (FEP)CommercialStatin Therapy for Patients With Diabetes - Received Statin Therapy (SPD)Erroneous logic resulted in under reporting of performance.Due to assessed level of impact, no product updates were made.
3/12/20252023Multiple OrgIDsMultiple Orgs in the Aetna Family were impacted by this data errorMedicareFollow-Up After Emergency Department Visit for People With Multiple High-Risk Chronic ConditionsErroneous logic resulted in a combination of overreported and underreported performance rates.Due to assessed level of impact and timing of notification, no product updates were made.
2/27/20252023Multiple OrgIDsMultiple Orgs in the Aetna Family were impacted by this data errorMedicare, ExchangePlan All-Cause ReadmissionsErroneous logic resulted in a combination of overreported and underreported performance rates.Due to assessed level of impact and timing of notification, no product updates were made.
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