Hospital-level, 30-day risk-standardised readmission rate for patients discharged from the hospital after a qualifying isolated coronary artery bypass graft surgery.

30-day, all-cause readmissions for patients discharged from the hospital after a qualifying isolated coronary artery bypass graft (CABG) surgery. This measure looks for a dichotomous yes or no outcome of whether each admitted patient has an unplanned readmission within 30 days.

Admissions for patients aged 65 or over; discharged alive; having a qualifying isolated CABG procedure during the index admission; and enrolled in Medicare fee-for-service Part A and Part B for the 12 months prior to the date of admission and Part A during the index admission.

Index admissions without at least 30 days of post-discharge enrolment in Medicare fee-for-service; discharged against medical advice; admissions for subsequent qualifying CABG procedures during the measurement period; with a principal/secondary diagnosis code of COVID-19 coded as POA on the index admission claim.

Hierarchical logistic regression is used to adjust for differences in hospital case mix (age and clinical status of the patient, accounted for by adjusting for comorbidities) and to account for the clustering of patients within a hospital. The measure calculates a risk-standardised ratio of the number of predicted readmissions to the number of expected readmissions. This ratio is multiplied by the national observed readmission rate to get the risk-standardised readmission rate (RSRR).

Medicare fee-for-service (FFS) claims data.

Hospital Readmission Reduction Program (CMS and Providers) CMS Care Compare - Hospitals and Provider Data Catalogue (Publicly reported) Contributes to Overall Hospital Quality Star Rating.

Goldberg EM, Morphis B, Youssef R, Gardner R. An analysis of diagnoses that drive readmission: What can we learn from the hospitals in Southern New England with the highest and lowest readmission performance? R I Med J (2013). 2017 Aug 1;100(8):23-28. PMID: 28759896; PMCID: PMC5666576. www.cms.gov/medicare/quality/value-based-programs/hospital-readmissions data.cms.gov/provider-data/topics/hospitals/measures-and-current-data-collection-periods data.cms.gov/provider-data/topics/hospitals/overall-hospital-quality-star-rating

cmit.cms.gov/cmit/#/MeasureView?variantId=1050&sectionNumber=1 www.cms.gov/medicare/quality/initiatives/hospital-quality-initiative/measure-methodology