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Dictionary of Evidence-based Medicine.pdf

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<strong>Dictionary</strong> <strong>of</strong> <strong>Evidence</strong>-<strong>based</strong> <strong>Medicine</strong> 87<br />

Internot/onol Classification <strong>of</strong> Diseases<br />

The International Classification <strong>of</strong> Diseases (ICD) is a system <strong>of</strong> disease classification<br />

which is regularly updated by the World Health Organization. The<br />

classification has its roots in the standard nomenclature for causes <strong>of</strong> death<br />

first proposed by W Farr (1807-83). The latest revision is the 10th (ICD-10),<br />

published by the WHO in 1992. The 21 disease categories are shown in<br />

Table 3 below.<br />

Table 3 Disease categories in ICD-10<br />

I<br />

II<br />

III<br />

IV<br />

V<br />

VI<br />

VII<br />

VIII<br />

IX<br />

X<br />

XI<br />

XII<br />

XIII<br />

XIV<br />

XV<br />

XVI<br />

XVII<br />

XVIII<br />

XIX<br />

XX<br />

XXI<br />

Certain infections and parasitic diseases<br />

Neoplasms<br />

Diseases <strong>of</strong> the blood and blood-forming organs and certain disorders involving<br />

the immune mechanism<br />

Endocrine, nutritional and metabolic diseases<br />

Mental and behavioural diseases<br />

Diseases <strong>of</strong> the nervous system<br />

Diseases <strong>of</strong> the eye and adnexa<br />

Diseases <strong>of</strong> the ear and mastoid process<br />

Diseases <strong>of</strong> the circulatory system<br />

Diseases <strong>of</strong> the respiratory system<br />

Diseases <strong>of</strong> the digestive system<br />

Diseases <strong>of</strong> the skin and subcutaneous tissue<br />

Diseases <strong>of</strong> the musculoskeletal system and connective tissue<br />

Diseases <strong>of</strong> the genitourinary system<br />

Pregnancy, childbirth and the puerperium<br />

Certain conditions originating in the perinatal period<br />

Congenital malformations, deformations and chromosomal abnormalities<br />

Symptoms, signs and abnormal clinical and laboratory findings, not classified<br />

elsewhere<br />

Injury, poisoning and certain consequences <strong>of</strong> external causes<br />

External causes <strong>of</strong> morbidity and mortality<br />

Factors influencing health and contact with health services<br />

(World Health Organization (1992) ICD-10 - International stotist/'co/ classification <strong>of</strong> diseases and related<br />

health problems, I Oth revision. WHO, Geneva.)<br />

International Conference on Harmonization (see ICH)

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