Now Accepting Public Comments through June 8, 2026 on the Draft 2027 CMS QRDA III Implementation Guide, Schematron, and Sample File for Eligible Clinicians
The denominator is the lower part of a fraction used to calculate a rate, proportion, or ratio. It can be the same as the initial population or a subset of the initial population to further constrain the population for the purpose of the measure. Continuous variable measures do not have a denominator, but instead define a measure population.