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CIHI sets the national standard for morbidity data reporting in Canada and maintains, distributes and supports the application of ICD-10-CA (the Canadian modification of ICD-10). CCI is the national standard for classifying health care procedures. Statistics Canada supports the mortality application of ICD-10.

ICD-10-CA (International Statistical Classification of Diseases and Related Health Problems, 10th Revision, Canada) was developed by the World Health Organization (WHO) and enhanced by CIHI to meet Canadian morbidity data needs. ICD-10-CA classifies diseases, injuries and causes of death, as well as external causes of injury and poisoning. It also includes conditions and situations that are not diseases but represent risk factors to health, such as occupational and environmental factors, lifestyle and psychosocial circumstances.

CCI  (Canadian Classification of Health Interventions) was developed by CIHI to accompany ICD-10-CA. It was designed to be service-provider and service-setting neutral and can be used comprehensively throughout Canada’s health systems. CCI classifies a broad range of interventions including therapeutic and diagnostic interventions and other health care interventions, such as assistance with activities of daily living, environmental assessments and counselling.

Other WHO classifications

ICD-11: The WHO is currently developing the 11th revision of the International Classification of Diseases. It is anticipated that ICD-11 will be released by the WHO in June 2018. See Canada’s involvement. 

ICF External link, opens in new window: The International Classification of Functioning, Disability and Health, developed by the WHO, is a classification of health and health-related domains that describe body functions and structures, activities and participation, and environmental factors. 

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Explore practical resources that your health care organization can use when implementing an interRAI assessment system.

Version 2018 ICD-10-CA and CCI

Access information about the 2018 version, including download instructions and frequently asked questions.

Classification Resources

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Title Description Data Holdings
Webinar: Opioid Overdose

Webinar recording about opioid overdose coding.

Tips for Coders: Optional Versus Mandatory CCI Attributes

The purpose of this Tip for Coders is to provide guidance for consistent data collection of Canadian Classification of Health Interventions (CCI) attributes. Data is reliable and valid for use only when it is captured consistently by all coders.

Post-Intervention Conditions Coding Activity Sheet: Who Am I?

Classifications and Terminologies' "Who Am I?" activity sheet tests coders' knowledge of post-intervention conditions coding. 

Education Roadmap: Reach Your GOAL With Classifications, DAD, NACRS, and Case Mix

This educational roadmap provides the resources to help current users of ICD‑10‑CA/CCI to enhance their skill sets and knowledge relating to coding and classification.

Public Submission Guidelines for Updating ICD-10-CA and CCI

CIHI has established this public submission process to enhance accessibility to the updating process by all who are involved or interested in Canadian health care data.

Now available: Updated version 2018 ICD-10-CA/CCI

Get information on the technical issues that have been resolved in version 2018 of ICD-10-CA/CCI, as well as new licensing requirements for Core Plan clients.

ICD-10-CA and CCI Code Evolution Chronicle

List of all ICD-10-CA and CCI codes, with their long code titles, from versions 2006 to 2018. Also identified are the top 100 codes assigned in the DAD/NACRS in 2016–2017.

Post-Intervention Condition: Locating the Primary Code

This job aid provides guidance in locating the correct ICD-10-CA primary code assignment for conditions or symptoms that meet the criteria of a post-intervention condition.  

ICD-10-CA and CCI Trending (Evolution)

Outlines the changes in a code from version 2015 to version 2018, and includes a comprehensive listing of all the ICD-10-CA and CCI codes in version 2018

Resolving a Coding Challenge

Job aid to help health information management (HIM) professionals resolve coding challenges.

iCODE Strategy

Apply this problem-solving strategy to help resolve a coding challenge. 

A Guide to Obstetrical Coding

This guide is a resource that addresses some of the more complex and challenging areas of obstetrical coding using ICD-10-CA and CCI.

CCI: A Guide to Intervention Code Assignment

This guide brings together the basic requirements for coding with the Canadian Classification of Health Interventions (CCI) along with the finer points on commonly encountered challenges.