Yes, it is possible.
follow the steps
To create one table of contents for different documents, you need to follow the below steps
1.Create a separate document to hold the table of contents.
2Try to put all the docs in one folder
3.In your ToC document(Table of Content Document), use an RD (Reference Document) field for each document that you want to include in your Table of Contents.
4.To insert an RD field, do ctrl-F9 and, within the brackets that Word gives you, type RD "filename". For example { RD "Chapter 1.docx" }. You can't type the curly brackets by hand. You must do ctrl-F9.
5.If you can't put all your files in one folder, you must use double backslashes and double quotes. For example, { RD "C:\\My folder\\yor doc name.docx" }.
In theory, you can use relative path names. But it never seems to work properly<g>.
6.Add an RD field for each document that you want to reference, in order.
7.Create the Table of Contents in this ToC document in the usual way.
8.Remember the page number rule: "The Table of Contents will pick up whatever pagination appears in your document". It applies when using RD fields to create a ToC for many documents. You may have to set the starting page number manually in each document if you want pagination to run consecutively through your project.
for more detail follow this link
http://www.shaunakelly.com/word/numbering/tableofcontents.html
Hope this helps
Regards
D