Label definition!

[mxn170019]

How was the label prepared in the experiment mentioned in the paper?
for a patient at visit Vt how much historical data(6 months/12 months) was used to prepare the feature row?
Did you use the window sliding method to prepare multiple rows for a single patient at different times?
Are you looking for the next visit or next couple of visits to check if the diagnosis code of positive class is present in future visits for each patient?