Far fewer children would get a diagnosis of bipolar disorder. “Binge eating disorder” and “hypersexuality” might become part of the everyday language. And the way many mental disorders are diagnosed and treated would be sharply revised.

These are a few of the changes proposed on Tuesday by doctors charged with revising psychiatry’s encyclopedia of mental disorders, the guidebook that largely determines where society draws the line between normal and not normal, between eccentricity and illness, between self-indulgence and self-destruction — and, by extension, when and how patients should be treated.