The Public Comment is now open through March 25, 2026 on the Draft 2027 CMS QRDA I Implementation Guide, Schematron, and Sample File for Hospital Quality Reporting
A proportion is a score derived by dividing the number of cases meeting a criterion for quality (the numerator) by the number of eligible cases within a given time frame (the denominator) where the numerator cases are a subset of the denominator cases (for example, percentage of eligible women with a mammogram performed in the last year).