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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: 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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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
ICD-10-CA/CCI for Core Plan Subscribers

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

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). 

Classifications and Terminologies 2018–2019 education refresh

Highlights of the Education Refresh and resulting changes that will take effect fiscal 2018-19.  

Version 2018 ICD-10-CA/CCI, Canadian Coding Standards and related products

Get information on version 2018 ICD-10-CA/CCI Folio application, the Canadian Coding Standards and related products. 

Guidelines to Support Capturing Cases of Opioid Overdose (Poisoning)

Clinical documentation requirements for capturing opioid overdose cases.

Zika Virus

Confirmed cases of the Zika virus should be classified using the following code:

Classifications and Terminologies Newsletter

Get news about changes to education offerings and the release of version 2018 ICD-10-CA/CCI and the Canadian Coding Standards.

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.    

Opioid Overdose Coding Direction

This bulletin provides coding and abstracting direction to ensure accurate and quality data collection strictly related to opioid overdose.

Version 2018 ICD-10-CA/CCI: How Will You Prepare?

Education available to support the transition from v2015 to v2018 ICD-10-CA/CCI.

Tips for Coders: Infections: Interpretation of This Versus

The results of a recent reabstraction study and subsequent data quality reviews have revealed some discrepancies with the coding of infections. 

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 June 2017

Get news about coding and abstracting direction for medical assistance in dying (MAID), field trials for ICD-11 and more.

MAID: Coding and Abstracting

Interim coding and abstracting direction for Medical Assistance in Dying (MAID) cases is provided for 2016–2017 and 2017–2018. Resubmission of relevant records for 2016–2017 is recommended. 

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.

Category/Rubric Tables: ICD-10-CA and CCI

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

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.

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).

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.

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.