Term: Adjusted Clinical Group ® (ACG®) Case-Mix System

Glossary Definition

Last Updated: 2012-10-16

Definition:

The Johns Hopkins Adjusted Clinical Group® (ACG®) Case-Mix System is a risk adjustment tool developed to measure the illness burden (morbidity) of individual patients and enrolled populations. This system quantifies morbidity by grouping individuals based on their age, gender and all known medical diagnoses assigned by their health care providers over a defined time period (typically one year).

Up until 2001 and the release of version 5, the ACG system was referred to as Ambulatory Care Groups (ACGs). For more information see the Adjusted Clinical Group® (ACG®) - Overview concept.

Related concepts 

• Adjusted Clinical Group® (ACG®) - Relative Cost Weights
• Adjusted Clinical Groups® (ACG®) - Overview
• Measures of Comorbidity

Related terms 

• Acute Conditions
• Aggregated Diagnosis Groups ™ (ADGs®)
• Ambulatory Diagnostic Groups (ADG)
• Comorbidity Level
• Discrete Medical Condition
• Health Status Indicators
• Johns Hopkins Adjusted Clinical Group® (ACG®) Case-Mix System
• Major / Minor Condition
• Morbidity
• Morbidity Index (ACG®-based)
• Resource Utilization Bands (RUBs)

References 

• The Johns Hopkins University Bloomberg School of Public Health. The Johns Hopkins ACG Case-Mix System Documentation & Application Manual Version 5.0. In: Jonathan P. Weiner (ed). Baltimore, MD: Johns Hopkins University; 2001. 0-0.(View)
• The Johns Hopkins University Bloomberg School of Public Health. The Johns Hopkins ACG Case-Mix System Version 6.0 Release Notes (Systems Documentation). In: Jonathan P. Weiner (ed). Baltimore, MD: Johns Hopkins University; 2003. 0-0.(View)

Term used in 

• Brownell M, Lix L, Ekuma O, Derksen S, Dehaney S, Bond R, Fransoo R, MacWilliam L, Bodnarchuk J. Why is the Health Status of Some Manitobans Not Improving? The Widening Gap in the Health Status of Manitobans. Winnipeg, MB: Manitoba Centre for Health Policy, 2003. [Report] [Summary] (View)
• Bruce S, Prior H, Katz A, Taylor M, Latosinsky S, Martens P, De Coster C, Brownell M, Soodeen R, Steinbach C. Application of Patient Safety Indicators in Manitoba: A First Look. Winnipeg, MB: Manitoba Centre for Health Policy, 2006. [Report] [Summary] (View)
• De Coster C, Chateau D, Dahl M, Soodeen RA, McKeen N. Waiting Times for Surgery, Manitoba 1999/2000 to 2003/04. Winnipeg, MB: Manitoba Centre for Health Policy, 2007. [Report] [Summary] (View)
• Doupe M, Brownell M, Kozyrskyj A, Dik N, Burchill C, Dahl M, Chateau D, De Coster C, Hinds A, Bodnarchuk J. Using Administrative Data to Develop Indicators of Quality Care in Personal Care Homes. Winnipeg, MB: Manitoba Centre for Health Policy, 2006. [Report] [Summary] [Additional Materials] (View)
• Finlayson G, Ekuma O, Yogendran M, Burland E, Forget E. The Additional Cost of Chronic Disease in Manitoba. Winnipeg, MB: Manitoba Centre for Health Policy, 2010. [Report] [Summary] (View)
• Finlayson GS, Forget E, Ekuma O, Derksen S, Bond R, Martens P, De Coster C. Allocating Funds for Healthcare in Manitoba Regional Health Authorities: A First Step--Population-Based Funding. Manitoba Centre for Health Policy, 2007. [Report] [Summary] (View)
• Fransoo R, Martens P, Prior H, Chateau D, McDougall C, Schultz J, McGowan K, Soodeen R, Bailly A. Adult Obesity in Manitoba: Prevalence, Associations, and Outcomes. Winnipeg, MB: Manitoba Centre for Health Policy, 2011. [Report] [Summary] (View)
• Frohlich N, Katz A, De Coster C, Dik N, Soodeen RA, Watson D, Bogdanovic B. Profiling Primary Care Physician Practice in Manitoba. Winnipeg, MB: Manitoba Centre for Health Policy, 2006. [Report] [Summary] (View)
• Garland A, Fransoo R, Olafson K, Ramsey C, Yogendran M, Chateau D, McGowan K. The Epidemiology and Outcomes of Critical Illness in Manitoba. Winnipeg, MB: Manitoba Centre for Health Policy, 2012. [Report] [Summary] (View)
• Katz A, De Coster C, Bogdanovic B, Soodeen R, Chateau D. Using Administrative Data to Develop Indicators of Quality in Family Practice. Winnipeg, MB: Manitoba Centre for Health Policy, 2004. [Report] [Summary] (View)
• Kozyrskyj A, Lix L, Dahl M, Soodeen R. High-cost Users of Pharmaceuticals: Who are They? Winnipeg, MB: Manitoba Centre for Health Policy, 2005. [Report] [Summary] (View)
• Martens P, Nickel N, Forget E, Lix L, Turner D, Prior H, Walld R, Soodeen RA, Rajotte L, Ekuma O. The Cost of Smoking: A Manitoba Study. Winnipeg, MB: Manitoba Centre for Health Policy, 2015. [Report] [Summary] [Updates and Errata] [Additional Materials] (View)
• Martens PJ, Fransoo R, McKeen N, The Need to Know Team, Burland E, Jebamani L, Burchill C, De Coster C, Ekuma O, Prior H, Chateau D, Robinson R, Metge C. Patterns of Regional Mental Illness Disorder Diagnoses and Service Use in Manitoba: A Population-Based Study. Winnipeg, MB: Manitoba Centre for Health Policy, 2004. [Report] [Summary] [Additional Materials] (View)
• Metge C, Kozyrskyj A, Dahl M, Yogendran M, Roos NP. Pharmaceuticals: Focussing on Appropriate Utilization. Winnipeg, MB: Manitoba Centre for Health Policy, 2003. [Report] [Summary] (View)
• Reid RJ, MacWilliam L, Roos NP, Bogdanovic B, Black C. Measuring Morbidity in Populations: Performance of the Johns Hopkins Adjusted Clinical Group (ACG) Case-Mix Adjustment System in Manitoba. Winnipeg, MB: Manitoba Centre for Health Policy and Evaluation, 1999. [Report] [Summary] (View)