Yep. You just need to CAST the first column as varchar:
,CAST(TEN.[tncy-sys-ref] AS varchar(10))
+ CASE WHEN PER.[GENDER] = 'M' THEN '1'
WHEN PER.[GENDER] = 'F' THEN '2'
ELSE '0'END AS 'ID'
SQL DBA,SQL Server MVP(07, 08, 09) A socialist is someone who will give you the shirt off *someone else's* back.