Term: International Classification of Diseases (ICD)

Glossary Definition

Last Updated: 2012-12-03


A classification system of diseases, health conditions and procedures developed by the World Health Organization (WHO), which represents the international standard for the labeling and numeric coding of diseases and health related problems. Within this system, all diseases / conditions are assigned codes (alphabetic and/or numeric combinations depending on the ICD version) in hierarchical order. There are several versions of the ICD coding system, including ICDA-8, ICD-9, ICD-9-CM (Clinical Modifications), ICD-O (Oncology), ICD-10 and ICD-10-CA (Canadian Enhancements).

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