Cannot figure out box 12 on W2

[FrankF1]

Enter the information from your W-2 using the codes and amounts in Box 12. If there is nothing, don't enter anything including zeros. Just leave it blank.

If you have more than one entry in Box 12, enter the information for the first line (Box 12a), then click "Add another row" (see attached image ) and enter the next line of information for Box 12. Continue adding rows until you have recorded all of your Box 12 entries.

You can see information about the codes for box 12 of Form W-2 in the article below:

https://ttlc.intuit.com/replies/3300234