Source:http://linkedlifedata.com/resource/umls/id/C0600104
MSH: The behavior of performing an act persistently and repetitively without it leading to reward or pleasure. The act is usually a small, circumscribed behavior, almost ritualistic, yet not pathologically disturbing. Examples of compulsive behavior include twirling of hair, checking something constantly, not wanting pennies in change, straightening tilted pictures, etc.,CSP: performing an act persistently and repetitively without leading to reward or pleasure; usually a small, circumscribed behavior, almost ritualistic, yet not pathologically disturbing; examples of compulsive behavior include twirling of hair, checking something constantly, not wanting pennies in change, straightening tilted pictures, etc.,NCI: An uncontrollable urge to say or do something without an obvious reason. A person may repeat a behavior, such as hand-washing, over and over.