CASE statement THEN value

Content

I would like to add a case statement logic where if a condition holds true, a column value is displayed. But in addition to the value being displayed from the system, I would also like to add some descriptive text to the cell.

Exmaple-

CASE 
WHEN  "All Profile Content"."Rating Level 2" IS NULL 
THEN  'Potential Rating:'  +  "All Profile Content"."Rating Level 1"
END

In the case above, If rating Level 2 is null, I would like to display the static text 'Potential Rating' before "Rating Level 1" from the system.

Is it feasible? Thank you!