caymam86,
The_Doc_Man is correct. However, I don't see his post any more?
When you reference Code in your question, I believe your 'Code' field is being confused with actual coding.
I hate to be the bearer of bad news, but your DB is going to need some redesign. You should take a screen shot of the "Relationships" and post.
IF YOU HAVE multiple tables with the 'Code' field in each table, your queries are going to be extremely complex and, perhaps, impossible to create. I did a similar thing many years ago when Access was first released in 92.
You need a separate table, perhaps named, Diagnosis with only; 'PK', 'Code' and 'Description' as fields.
Your Table(s) should have a corresponding field to hold the PK of the Diagnosis table.
You need the PK AutoNumber in your table(s) instead of the 'Code.'
AutoNumber Code Description
1 DN Ductal (NST)
2 LP Lobular
3 ME Medullary
4 MP ...
5 OM ...
...
You can use "Find and Replace" to change the 'Code,' or whatever, field values in your other table(s).
Display a table with the "Home" tab.
Click in the first entry in the 'Code' field or whatever.
Select "Replace."
In the "Find What" box type DN and in the "Replace With" box type 1.
Do that for each entry of the DN,LP,ME,MP,OM,... using the corresponding number for each 'Code.'
Doesn't matter lower or upper case.
LInk the Relationship PK of the newly created, 'Diagnosis" table to the 'Code,' or whatever, field in each table.
Doing this will allow you to only need change the 'Code' field in the 'Diagnosis' table.
You might wait for a reply to my post from The_Doc_Man, theDBguy, Gasman, CJ London or others to be sure my post is correct and is a workable solution.
They are among the ultimate experts of this forum.
Hope this is correct and helps.
oldaf294,
Jim