Source:http://linkedlifedata.com/resource/umls/id/C0085281
MSH: The observable, measurable, and often pathological activity of an organism that portrays its inability to overcome a habit resulting in an insatiable craving for a substance or for performing certain acts. The addictive behavior includes the emotional and physical overdependence on the object of habit in increasing amount or frequency.,NCI: Uncontrollable craving, seeking, and use of a substance such as a drug or alcohol.