Diagnostic and Statistical Manual of Mental Disorders (DSM): The DSM is the primary diagnostic manual used in the United States for mental health conditions, providing detailed criteria and guidelines for identifying and classifying various psychological disorders.
World Health Organization (WHO): The WHO is the United Nations agency responsible for international public health, and they oversee the development and implementation of the ICD-11 classification system.
Nosology: The branch of medicine that deals with the classification of diseases, including the identification, description, and organization of different health conditions.