Hello Faye,
I understand what you are describing now.
The system is telling you that 261 items have been assigned that code but only 256 are shown when you list items with that code. What has happened is that 5 of the 261 items, after being coded, were marked as a duplicate. Once they are marked as a duplicate they will not be listed when you asked for items assigned a particular code.
The ID's of the 5 items and their master item are:
ID Short title Master ID
2406396 Daher (2008) 2129334
2405255 Davidson (2002) 2407288
2129398 Ferrell (2007) 2130446
2130443 Ferrell (2010) 2129396
2130529 Gnaedinger (2008) 2129437
If you run a search on ID 2129334 and then go into that item you can see 2406396 is a duplicate of it (listed near the bottom of the screen).
This means that when you delete the 'Explicit palliative approach' code you are removing the code from 261 items but only 256 are visible to the user. The other 5 are duplicates.
Best regards,
Jeff