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Health in Hunter New England |
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ICD Codes |
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Health in Hunter New England |
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ICD Codes |
This appendix details the codes from the International Statistical Classification of Diseases (ICD) used to prepare some of the data included in this report.
The 10th revision of the ICD (ICD-10) was generally implemented in Australia from 1998 onwards. It was a major update of the 9th revision (ICD-9). For some diseases or disease groups, it is not possible to construct a one-to-one mapping between the two revisions, and as a result there may be a small distortion of trend lines. Where there was a major change in the cases which would be selected, no trends have been shown.
For some disease groupings, codes differ between the modifications of ICD-9 used for the various data sources. These differences are shown in the table.
Disease codes
ICD codes used for diseases or disease groups in this report are shown in Table 1.
ABS Deaths register
Causes of deaths registered before 1999 were coded according to the 9th revision of the International Classification of Diseases (ICD-9). From 1 January 1999 onwards, causes of death have been classified according to the 10th revision of the International Classification of Diseases (ICD-10).
Inpatient Statistics Collection
The reasons for admission to hospital were coded according to the 9th revision of the International Classification of Diseases, Clinical Modification (ICD-9-CM) for years up to and including 1997-98. From 1 July 1998, the reasons for admission have been coded according to the 10th revision of the International Classification of Diseases, Australian Modification (ICD-10-AM).
Central Cancer Registry
Cases of cancer registered before July 1999 were classified according to ICD-9. Cases registered from 1 July 1999 onwards have been classified according to the 2nd edition of the International Classification of Diseases for Oncology (ICD-O-2). ICD-O-2 codes were translated by the Registry to ICD-10 codes, which were used to prepare this report.
Procedure codes
ICD codes used for diseases or disease groups in this report are shown in Table 2.
Inpatient Statistics Collection
Procedures carried out while patients were admitted to hospital were coded according to the 9th revision of the International Classification of Diseases, Clinical Modification (ICD-9-CM) for years up to and including 1997-98. From 1 July 1998, the procedures have been coded according the MBS-Extended procedure classifications in ICD-10-AM. These codes are based on the Commonwealth Medicare Benefits scheme (MBS) and are relevant to Australian data only.
Deaths and hospitalisations attributable to smoking, alcohol or illicit drugs
ICD codes for diseases and disease groups used to calculate deaths and hospitalisations attributable to alcohol, smoking or illicit drugs are shown in Table 3. NSW Health Department obtained an electronic file of the aetiologic fractions developed by Ridolfo and Stevenson (2001) of the Australian Institute of Health and Welfare. The disease and injury groupings used in this file were defined using ICD-9 and ICD-9-CM. The appropriate groupings of ICD-10 and ICD-10-AM codes were developed by the Centre for Epidemiology and Research for use in the Chief Health Officer's Report. These code groupings were also used in this report.
Potentially avoidable mortality
ICD codes for diseases and disease groups used to calculate potentially avoidable mortality are shown in Table 4. Tobias and Jackson (2001) defined conditions using ICD-9 codes only. The appropriate groupings of ICD-10 codes were developed by the Centre for Epidemiology and Research for use in the Chief Health Officer's Report. These code groupings were also used in this report.
Potentially avoidable hospitalisations
ICD codes for diseases and disease groups used to calculate potentially avoidable (ACS) hospitalisations are shown in Table 5. The categories used for the ambulatory care-sensitive conditions are based on those used by the Victorian Department of Human Services (DHS, 2001), which were defined according to ICD-9-CM codes. The appropriate groupings of ICD-10-AM codes were developed by the Centre for Epidemiology and Research for use in the Chief Health Officer's Report. These code groupings were also used in this report.
Health Status (Burden of Disease)
Diseases were grouped into condition groups, as shown in Table 6. These groups were used to show leading causes of years of life lost (YLL), years of life lived with disability (YLD), and disability adjusted life years (DALY). These indicators use deaths data from 1996, so ICD-9 codes only are shown. The condition groups were further grouped into categories, as shown in Table 7, for YLL, YLD, DALY, and causes of death and hospitalisations.
| For more information: |
National Centre for Classification in Health. ICD-10-AM, 2nd edition. Sydney: National Centre for Classification in Health, 2000. |
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National Coding Centre. The Australian version of the International Classification of Diseases, 9th revision, clinical modification (ICD-9-CM). Sydney: University of Sydney, 1996.
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World Health Organization. International Classification of Diseases, 9th revision. Geneva: WHO, 1977. |
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| World Health Organization. International Statistical Classification of Diseases and Related Health Problems, 10th revision. Geneva: WHO, 1992. | |
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World Health Organization. International Classification of Diseases for Oncology (ICD-O), 2nd edition. Geneva: WHO, 1990. |
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Ridolfo B, Stevenson C. The quantification of drug-caused mortality and morbidity in Australia, 1998. Canberra: Australian Institute of Health and Welfare, 2001. www.aihw.gov.au |
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Tobias M, Jackson G. Avoidable mortality in New Zealand, 1981-97. Aust NZ J Public Health 2001;25:12-20. |
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Victorian Government Department of Human Services. The Victorian ambulatory care sensitive conditions study: Preliminary analyses. Melbourne: Victorian Government Department of Human Services, 2001. |
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| Print version: | Although this page can be printed directly from your Web browser, a higher quality version of this entire page (graph, table and text) is available as an Acrobat PDF file which can be printed or viewed on screen using free software. |
| Rider: | The information presented in this resource result from analyses of a variety of social and health focused datasets. These datasets originate from a variety of sources including Hunter New England Health, the NSW Department of Health, and the Australian Bureau of Statistics. The timing of the release of these data to third parties is controlled by the owner of these data. It is therefore possible for these organisations to publish data that they have not yet made available to Hunter New England Population Health for analysis and release. Users should therefore check the publications of these organisations as it is possible that they may have published even more up to date information on Hunter New England than those available in this resource. As this resource is an ongoing project, the indicators presented will be updated as soon as possible after the release of all datasets to Hunter New England Population Health. |
| Copyright notice: |
This work is copyright ©. It may be reproduced in whole or in part for study training purposes subject to the inclusion of an acknowledgement of the source.
It may not be reproduced for commercial usage or sale. Reproduction for purposes other than those indicated above requires written permission from Hunter New England Health. © NSW Department of Health and Hunter New England Health 2007 |
| Suggested citation: | Hunter New England Population Health, Health in Hunter New England e-Resource, Hunter New England Area Health Service, 2007. Available at: http://www.hnehealth.nsw.gov.au/HNEPH/HHNE/toc/app_icd9icd10map.htm - Accessed (insert date of access). |
| Contributors: | Assistance from NSW Department of Health: This resource is modified from work undertaken for the production of the electronic and hard copy versions of the report Health of the people of NSW: Report of the Chief Health Officer, (http://www.health.nsw.gov.au/public-health/chorep/) by the Centre for Epidemiology and Research of the NSW Department of Health. This work includes research and definition of indicators, programming framework, statistical programs, text and programming infrastructure for web publishing. Hunter New England Population Health has produced a local version of the resource reflecting local concerns, where appropriate, and ensuring that only minimal changes were made in other parts of the text and presentation in the interest of consistency at a state level. |
| Produced by: | Hunter New England Population Health, Hunter New England Health, with assistance from Centre for Epidemiology and Research, NSW Health and modified from the electronic report Health of the people of NSW: Report of the Chief Health Officer, (http://www.health.nsw.gov.au/public-health/chorep/) |
| Last updated: | 22 October 2007 |
| See NSW Data: | To view state data, relating to this indicator go to the report Health of the people of NSW: Report of the Chief Health Officer. (http://www.health.nsw.gov.au/public-health/chorep/) or intranet version |
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