Yes, if you have a new medication and want to use an old code for the product you can rename the old product and reuse the code.
Go to “General” – “Medicine/vaccination” – “Medicament”:
Using the filter line, you find the medication in question. Here code 9 name Oxytocin:
Place the cursor in the grey field saying 9 and press F2 on your keyboard.
Now you can select another code to the product – e.g., 99 (all over the program the 9 will now be rename to 99).
Be aware that you cannot rename to a code in use.
Now you can reuse the code 9 for another medication.