DSM-IV: International Version is identical in content to the standard DSM-IV except for its use of International Classification of Diseases and Related Health Problems, tenth revision (ICD-10), diagnostic codes in place of those based on International Classification of Diseases, ninth revision, Clinical Modification (ICD-9-CM) codes. The purpose of establishing DSM-IV: International Version is for the convenience of users in those countries that have adopted ICD-10 as the official coding system for reporting purposes. Two additional appendices are also provided.