International Statistical Classification of Diseases (ICD-10)

International Statistical Classification

of Diseases and Related Health Problems


ICD-10 is the 10th revision of the International Statistical Classification of Diseases and Related Health Problems, a medical classification list by the World Health Organization (WHO). It contains codes for diseases, signs and symptoms, abnormal findings, complaints, social circumstances, and external causes of injury or diseases. The code set allows more than 14,400 different codes and permits the tracking of many new diagnoses. The codes can be expanded to over 16,000 codes by using optional sub-classifications. Within the healthcare industry, providers, coders, IT professionals, insurance carriers, government agencies and others use thosecodes to properly note diseases on health records, track epidemiological trends, and assist in medical reimbursement decisions. The World Health Organization (WHO) owns, develops and publishes the codes, and national governments and other regulating bodies adopt the system.

The WHO provides detailed information about ICD online, and makes available a set of materials online, such as an online browser,  Training, online training, online training support, and study guide materials for download. The International version of ICD should not be confused with national modifications that frequently include much more detail, and sometimes have separate sections for procedures. The US Clinical Modification (ICD-10-CM), for instance, has some 68,000 codes.


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