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On line catalogue Main page Highlights Introduction Mortality classification in Canada with ICD-10 Comparability study data and methods Comparability study results Discussion Technical notes References Tables and charts More information PDF version

Comparability of ICD-10 and ICD-9 for Mortality Statistics in Canada

Leslie Geran, Patricia Tully, Patricia Wood (Health Statistics Division), Brad Thomas (Household Survey Methods Division), Statistics Canada

1. Introduction

2.Mortality classification in Canada with ICD-10
2.1 Canadian Vital Statistics System
2.2 History of the International Classification of Diseases (ICD) for mortality statistics in Canada
2.3 Language versions of ICD-10
2.4 Major changes in ICD-10
2.4.1 Changes in the classification
2.4.2 Changes in the underlying cause selection and modification rules
2.4.3 Changes in tabulation lists
2.5 Training of mortality classification staff

3. Comparability study data and methods
3.1 The comparability study
3.2 Study design
3.3 Sample design
3.4 Dual-coding procedures
3.5 Calculation of comparability ratios
3.6 Calculation of confidence intervals

4. Comparability study results
4.1 Note on the impact of changes to Selection Rule 3: Direct consequences
4.2 Note on the impact of changes to Modification Rule A: Senility and other ill-defined conditions
4.3 Preliminary results for selected causes of death
4.3.1 Infectious diseases
4.3.2 Malignant neoplasms
4.3.3 Endocrine, nutritional and metabolic diseases
4.3.4 Diseases of the nervous system
4.3.5 Diseases of the circulatory system
4.3.6 Respiratory system diseases
4.3.7 Diseases of the digestive system
4.3.8 Diseases of the genitourinary system
4.3.9 External causes of death
4.3.10 Causes of infant death

5. Discussion
5.1 Impact of ICD-10 implementation
5.1.1 Use of comparability ratios
5.2 Future changes to ICD-10
5.3 Mortality versus morbidity classification

6. Technical notes
6.1 Calculation of confidence intervals
6.1.1. Standard approach to the calculation of standard error
6.1.2. The GES approach to the calculation of standard error

7. References

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Date modified: 2005-11-23 Important Notices