Created in 1991 by the National Committee for Quality Assurance (NCQA), the Healthcare Effectiveness Data and Information Set (HEDIS) has become used almost universally in the managed care industry as a tool for measuring the performance of health care plans.

The NCQA estimates that more than 90% of health plans in the United States use HEDIS to measure performance of a health plan’s care and service. Because so many health plans collect large amounts of the same kinds of data for HEDIS reporting, it’s possible to compare them on a level playing field.

Measures for HEDIS, which are revised every year, are strictly defined, as are the reporting guidelines. Here are 10 facts about HEDIS reporting.

Facts about HEDIS Reporting

Measurements and domains. There are 81 different measurements for HEDIS. Each is grouped in one of five “domains of care”:

  • Effectiveness of care
  • Access/availability of care
  • Exp