Attributes can use different code tables already created in your database, to see what code table was selected when you created your attribute you can add a column with that information to your attribute category area. 
  1.  Go to administration
  2. Click attribute category
  3. Click the column button
  4. Check the box to include code table name
  5. Click apply
  6. Under the code table column write down the name of the code table selected for that attribute
  7. Go to administration
  8. Click code tables
  9. search for that code table type