Health Plan Employer Data and Information Set
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Health Plan Em·ploy·er Da·ta and In·for·ma·tion Set(HEDIS) (helth plan em-ploy'ĕr dā'tă in'fōr-mā'shŭn set)
A set of standardized measures for comparing health plans; developed and maintained by the National Committee for Quality Assurance (NCQA).
Health Plan Employer Data and Information Set,
A set of benchmarks used to assess the quality of care provided to patients by managed-care organizations. Included in these benchmarks are the numbers of immunizations administered by the plans and the extent of health screening tests provided by them.