V001019 (Summary - type of place R grew up) used code 8 both as a valid code and as a summary code for DK cases (codebook shows 2 code 8 categories). Instead, the missing data categories should be:

9. DK
0. RF; NA

To correct the data, the following recode may be used:

if V001019 eq 9 then V001019=0;
if V001015 eq 9 or V001016 eq 8 or V001017 eq 8 or V001018 eq 8 
   then V001019=9;