The International Classification of Diseases (ICD), published by the World Health Organization (WHO), is a major classification system for diseases that is recognized globally. Originating in Europe after World War II, the ICD has undergone multiple revisions, similar to the DSM. While it is used for clinical diagnosis and shares similarities with the DSM in its categories and criteria for psychological disorders, it also serves broader public health functions. These include monitoring the overall health of populations and tracking the international prevalence of various diseases and health issues.