Table 2.

2012 revised IRLSSG diagnostic criteria (International Restless Legs Syndrome Study Group, 2012).

Essential diagnostic criteria
simple (1) An urge to move the legs usually but not always accompanied by, or felt to be caused by, uncomfortable and unpleasant sensations in the legs. simple (2) The urge to move the legs and any accompanying unpleasant sensations begin or worsen during periods of rest or inactivity such as lying down or sitting. simple (3) The urge to move the legs and any accompanying unpleasant sensations are partially or totally relieved by movement, such as walking or stretching, at least as long as the activity continues. simple (4) The urge to move the legs and any accompanying unpleasant sensations during rest or inactivity only occur or are worse in the evening or night than during the day. simple (5) The occurrence of the above features is not solely accounted for as symptoms primary to another medical or a behavioral condition (e.g., myalgia, venous stasis, leg edema, arthritis, leg cramps, positional discomfort, habitual foot tapping).
Specifiers for clinical course of RLS/WED
(A) Chronic-persistent RLS	Symptoms occurring at least twice a week on average for the past year when not treated.
(B) Intermittent RLS	Symptoms occurring less than twice a week on average for the past year when not treated.
Specifiers for clinical significance of RLS/WED
The symptoms of RLS/WED cause significant distress or impairment in social, occupational, educational or other important areas of functioning by their impact onsleep, energy/vitality, daily activities, behavior, cognition, or mood.