Is there a 5 way bypass heart surgery?

It's a quintuple bypass.

My dad had a quintuple bypass in September 2010.

Coronary artery bypass surgery, also coronary artery bypass graft CABG 'pronounced cabbage'.

1 - Single bypass

2 - Double bypass

3 - Triple bypass

4 - Quadruple bypass

5 - Quintuple bypass

6 - Sextuple bypass