Getting sql query error

I am running the below query in my code, but i am getting error as

Msg 102, Level 15, State 1, Line 3 Incorrect syntax near ')'.

Here is my query

"Select Type_desc, Type_Abbr from type_mst_a where Type_code = 'AC' and NOT Type_Abbr = 'PEC' " +
                                 "and type_abbr NOT IN (select category_id from EMP_ATTACHED_DOCUMENTS where " +
                                 "pk1_value = '" + txtEmpCode.Text + "')for xml raw,elements)) Categories"

Please suggest what is wrong here