Back to Pegasus definition listing Choose a year from the dropdown to view that year's definition 2007 2011 2009 2007 2003 2002 2001 2000 1999 1998 Multiple sclerosis Date: April 2007 Definition: A definite diagnosis of multiple sclerosis by a Consultant Neurologist. There must be current clinical impairment of motor or sensory function, which must have persisted for a continuous period of at least six months. Definition update history: Multiple sclerosis May 2011 Multiple sclerosis July 2009 Multiple sclerosis April 2007 Multiple sclerosis November 2003 Multiple sclerosis May 2003 Multiple sclerosis March 2003 Multiple sclerosis April 2002 Multiple sclerosis July 2001 Multiple sclerosis November 2000 Multiple sclerosis November 1999 Multiple sclerosis July 1999 Multiple sclerosis February 1998 Share this by email Back to Pegasus definition listing