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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. 

Make a request for enhancements, additions or changes to ICD-10-CA and/or CCI.

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Version 2018 ICD-10-CA and CCI

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

Classification Resources

Narrow the search results below by using the drop-down to choose a Data Holding, or use the search bar for more freedom.

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Title Description Data Holdings
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. 

Canadian Coding Standards Evolution Chronicle

Provides a comprehensive listing of the changes to the coding standards from 2001 to 2018.  

ICD-10-CA/CCI for General Public (non–Core Plan Client)

This page provides the general public (non–Core Plan clients) with access to ICD-10-CA (version 2018) and CCI (Canadian Classification of Health Interventions). 

Tips for Coders: ICD-10-CA Classification of Multiple Hernias

This Tip for Coders is to provide some guidance on the correct ICD-10-CA classification of multiple hernias where different axes of classification are involved.    

Tips for Coders: Diagnosis Typing for the Delivery Episode of Care

Application of diagnosis types for the delivery episode of care.

Classifications and Terminologies Newsletter, December 2018

Get news on Classifications and Terminologies activities, upcoming education courses, coding questions, topical data quality initiatives and more! 

Canadian Coding Standards for ICD-10-CA and CCI

This manual supplements the classification rules inherent in the ICD-10-CA and the Canadian Classification of Health Interventions (CCI) by providing additional information that could not be embedded into the classifications.

DAD , NACRS
Category/Rubric Tables: ICD-10-CA and CCI

This document contains tables with all categories, chapter headings, block headings, rubrics and sections of codes.

DAD , NACRS
Code Title Tables (for Use With ICD-10-CA/CCI)

This document contains diagnosis and intervention tables, the valid codes, and their short and long descriptions.

DAD , NACRS
Validation Tables (for Use With ICD-10-CA/CCI)

This document contains valid diagnosis and intervention codes by fiscal year and stipulates mandatory minimum edits (validation edits).

DAD , HMDB , NACRS
ICD-10-CA and CCI Evolution Tables

This guide assists with understanding macro changes within the classifications. The tables assist with data retrieval from one version of the classification to the next.

DAD , HMDB , HMHDB , NACRS , NTR , OTR