Despite the advocacy of categorizing Internet addiction as an established illness,[1][44] neither DSM-IV (1995) nor DSM-5 (2013) considers Internet addiction as a mental disorder.[45] A subcategory of IAD, Internet gaming disorder is listed in DSM-5 as a condition that requires more research in order to be considered as a full disorder in May 2013.[45][46][47] The WHO's draft 11th Revision of the International Classification of Diseases (ICD-11) scheduled for publication in 2018 also include gaming disorder.[48] There is still considerable controversy over whether IAD should be included in the DSM-5 and recognized as a mental disease in general.[49]