They are stated in my initial posting. The only different is that I have ICD1 through ICD20. So for all of these ICD variables I need to recode them as below. The highlighted values are the ones I have problems with since character values doesn't work that way. array _icdvar ICD1--ICD20;      do over _icdvar;           if _icdvar in ('462', '464', '465', '466', '480--488', '507.0', '997.31' then Respiratory = 1, else Respiratory = 0;           if _icdvar in ('599.0--599.5') then Infectious = 1; else Infectious = 0;           if _icdvar in ('787.20'--'787.29') then Dysphagia = 1; else Dysphagia = 0;           if _icdvar in ('308', '310') then Agititation = 1; else Agitation = 0;           if _icdvar in ('707.00'--'707.9') then SkinUlcer = 1; else SkinuUlcer = 0;      end; ... View more

I think you understood what I'm trying to do. Yes, I do not know all the exact values down to 2 decimals. But I'll give your code a try. Thank you. ... View more

I don't quite understand what your suggestions are. I pulled the xls file but the codes didn't look like anything I have (no decimals). My problem is not trying to find the ICD codes for the categories but trying to list the codes that are in sequence without having to type them all (because I couldn't possibly knows each one of them). I wanted to see if I can do something like this that work for numeric variables.      if ICD1 in (462, 464, 465, 466, 480-488, 507.0, 997.31) then Respiratory = 1; else Respiratory = 0; Any ideas how to deal with character variables? ... View more

They do contains letters. In fact, I have 20 ICD code variables. So, I can't change the data type to numeric as you suggested. ... View more