Make Emacs do help for you, type C-h k and your C-v, Emacs shown something like I get for Ctrl + numPlus when do this in xterm:
M-O 5 k is undefined
which I translate into
(global-set-key (kbd "M-O 5 k") 'end-of-line)
and that work fine!
UPDATE Use my expect script to get byte sequence from terminal you get when press key combination: http://sourceforge.net/u/gavenkoa/utils/ci/default/tree/misc/keyseq.exp
If you use mintty I check docs: https://code.google.com/p/mintty/wiki/Tips and your key code sequence is very similar to another examples so I believe that:
(global-set-key (kbd "\e[1;5u") 'end-of-line)
do job for you.
Check topics from (info "(elisp)Reading Input).
UPDATE 2 You are trapped into Ctrl+Backspace issue for terminals, investigate info yourself: https://www.google.com.ua/search?q=ctrl+backspace+terminal
I remember that I have same issue few years ago. Main problem that Ctrl+Backspace generate same byte sequence in terminal emulators as Ctrl-H. For that reason I train to use ESC Backspace for deleting word backward. I never deep into terminal emulation standarts and implementation code to understand if it possible to generate different code sequence in mintty for C-Backspace ((