Also, be sure to check: sys.sql_expression_dependencies.
And not just in its own db but in other dbs, esp. on the same instance.
And the usual disclaimer: even that isn't guaranteed to be every reference, of course. But it's probably the best list of references to that column you can get.
SQL DBA,SQL Server MVP(07, 08, 09)[size=2]Prosecutor James Blackburn, in closing argument in the Fatal Vision murders trial: If in the future, you should cry a tear, cry one for them [the murder victims]. If in the future, you should say a prayer, say one for them. And if in the future, you should light a candle, light one for them.[/size]