Please help! What is the difference between coronary artery disease & congestive heart failure?

Blocked arteries vs. Coronary artery disease typically refers to atherosclerosis of the coronary arteries which supply blood to the heart muscle. Atherosclerosis blocks the coronary arteries. Congestive heart failure is heart disease that restricts the heart's ability to deliver oxygen to the body, typically with increased filling pressure of the heart (causing fluid backup, or congestion.).