[Problems in the systematics of mental disorders of an exogenous and exogenous-organic nature].

Modern classifications of psychic disorders of the exogenous and exogenous-organic origin are reviewed. It is emphasized that the available international classifications including IDC-8 and IDC-9 as well as the classification currently used in the USA cannot be considered as adequate. The present work aims at attempting a uniform classification of psychic disturbances associated with somatic diseases, infections and intoxications which would reflect in the general form the nature and sequence of the development of the major, most common psychotic disturbances in all diseases of the exogenous and exogenous organic character. The classification proposed includes a group of neurosislike states, acute symptomatic psychoses, protracted symptomatic psychoses and various kinds of the psychoorganic syndrome. The conditions and probabilities of the development of different states of the exogenous organic origin are discussed.