EN
For the sake of diagnosis and therapy, there were created medical typologies of worldwide range, among which the most recognized and commonly used are ICD (International Statistical Classification of Diseases and Related Health Problems) and DSM (Diagnostic and Statistical Manual of Mental Disorders) of which new editions are the subject of interest to the authors. This article points out the global trends and directions of changes that occur throughout the area of terminology and categorization of mental development disorders (neurodevelopmental) and associated with them Developmental Language Disorders (DLD). The work presents and refers to the proposals of changes, which are planned by WHO in the latest, eleventh edition of international classification of diseases and mental disorders ICD, that will be in force in Poland from 1 January 2022. There is also made an attempt to show how the terminology has been changing over the past 25 years and what changes are currently being made in this field; how the development of knowledge and social awareness impacted the revision of the theoretical approach and nomenclature. It was possible by the detailed analysis of the older and new editions of abovementioned ICD and DSM typologies, that is: DSM-IV from 1994 and 2000, DSM-5 (from 2013), ICD-10 (released in 1996) and ICD-11 (from 2019). In the table placed in the final part of the article (which is modified version of the table published by Jastrzębowska in 1999, supplemented with new changes proposed by WHO and the American Association of Psychiatrists) it is indicated how the theoretical approach has evolved in relation to mental disorders and behaviour, and as a consequence, how the names of speech and language development disorders created on this background have changed. This table compares the native terminology with the one that is currently in force in ICD-10, DSM-IV and DSM-5, and it refers to the names of categories and clinical units distinguished in the new, eleventh edition of ICD. In order to make comparison and accurately evaluate the described phenomena, this collation has been complemented with a detailed description of diagnostic criteria proposed in ICD-11 and DSM-5.