I47: Paroxysmal tachycardia

I47.9: Paroxysmal tachycardia, unspecified

The heart pumps blood through the body. In the process, the blood flows through blood vessels. The blood supplies all areas of the body with oxygen and nutrients.

If the heart beats too quickly at intervals, it is something that can start very suddenly. It can stop doing so all by itself, too. A fast heartbeat may be perceived as a skipped heartbeat or as palpitations. You may have chest pain. You may also feel dizzy or pass out.