Glossary

ACR is a rating by community influenced by certain group demographics. Estimated payment rates that health plans with Medicare risk contracts would have received for their Medicare enrollees if paid their private market premiums, adjusted for differences in benefit packages and service use. Health plans estimate their ACRs annually and adjust subsequent year supplemental benefits or premiums to return any excess Medicare revenue above the ACR to enrollees. See Adjusted Average Per Capita Cost, Medicare Risk Contract. See also Community Rating.