In the beta draft of its forthcoming 11th International Classification of Diseases, the World Health Organization includes "gaming disorder" in its list of mental health conditions. The WHO defines the disorder as a "persistent or recurrent" behavior pattern of "sufficient severity to result in significant impairment in personal, family, social, educational, occupational or other important areas of functioning."
The disorder is characterized by "impaired control" with increasing priority given to gaming and "escalation," despite "negative consequences."