Luis has the answer for you. Just also be aware of the risk with hard coding values in the SQL code. It may be a good idea to have a table that represents these different states (DISP, EXP) with a accompanying ID column.
In your code you can join to this 'status' table and join on the ID . No need for case statments.
Select t1.statusID , t2.statusName
FROM myBaseTable t1
JOIN myStatusTable t2
ON t1.statusID=t2.statusID
THat way if later your status name get s a better name (disp --> displaced) for clarity you dont need to change anything in your code
Just be aware that such a table will need maintenance to be sure that new values are added as needed.