EMPLOYEE, WORKING ON 6A SECTION BUILDING RETURN STOPPING, COMPLETED LAST ROW; LIFTING A SOLID BLOCK APPROXIMATELY 7 FEET HIGH HE FELT PAIN IN UPPER ABDOMEN. HE HAS PREVIOUS HISTORY OF HERNIA I N IMMEDIATE AREA (SURGERY 12/18/00). HE HAS CONTINUED TO WORK MISSING NO DAYS. RECEIVED DIAGNOSIS OF HERNIA ON 12/19/03.