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Comprehensive Ambulatory Classification System Directory (CACS)  Core

The CACS Directory includes an overview of the CACS grouping logic, a comprehensive set of flowcharts that illustrate CACS cell assignment within each major ambulatory cluster (MAC), and a list of CACS groups and associated base Resource Intensity Weights (RIWs).

CACS was redeveloped in 2011 to support DAD and NACRS clients, and the directory now includes additional logic types for emergency, rehabilitation and exception (including direct diagnostic imaging and telephone visits), as well as factor methodology.

The CACS directory will no longer be updated annually. You should continue to use the most recent version of the directory until the next case mix methodology update. Resource Intensity Weight (RIW) values from 2022 CACS will be held constant to allow more time to evaluate and adjust for changes to hospital activity and costs during the pandemic. To this end, the information in the 2022 release remains the most up-to-date information.


The directory is subject to a licence agreement that can be viewed below. If you do not or cannot agree to the licence agreement, you may not download, access, view or use the directory. By downloading the directory, you agree that you have understood and agreed to the licence agreement.

Available Reports

Comprehensive Ambulatory Classification System Directory (CACS) 2022
Language Media Type Price A/B Details Action
English Electronic $415/$830 View
French Electronic $415/$830 View

Comprehensive Ambulatory Classification System Directory (CACS) 2021
Language Media Type Price A/B Details Action
English Electronic $415/$830 View
French Electronic $415/$830 View

Comprehensive Ambulatory Classification System (CACS) Directory 2019
Language Media Type Price A/B Details Action
English Electronic $390/$780 View
French Electronic $390/$780 View

Comprehensive Ambulatory Classification System (CACS) Directory 2018
Language Media Type Price A/B Details Action
English Electronic $390/$780 View
French Electronic $390/$780 View

Contact

casemix@cihi.ca

FAQ

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