Try this:
$ awk '
BEGIN {FS = OFS = "|"}
length($5)>=13 {
fld5=$5
start = substr($5,1,7)
end = substr($5,length($5)-4)
gsub(/./,"x",fld5)
sub(/^......./,start,fld5)
sub(/.....$/,end,fld5)
$1=$2; $2=$4; $3=$5; $4=fld5; NF-=3;
}1' file
"X"|"ST"|"245552544555201"|"245552xxxxx5201"
"Y"|"VT"|"245652544555200"|"245652xxxxx5200"
"X"|"ST"|"3445625445552023"|"344562xxxxxx2023"
"Y"|"VT"|"24532254455524"|"245322xxxx5524"