sqlserver get column description

SELECT 
    ST.NAME [TABLE],
    SC.NAME [COLUMN],
    SEP.VALUE [DESCRIPTION]
FROM SYS.TABLES ST
INNER JOIN 
    SYS.COLUMNS SC ON ST.OBJECT_ID = SC.OBJECT_ID
LEFT JOIN 
    SYS.EXTENDED_PROPERTIES SEP ON 
        ST.OBJECT_ID = SEP.MAJOR_ID
    AND SC.COLUMN_ID = SEP.MINOR_ID
    AND SEP.NAME = 'MS_DESCRIPTION'