I51: Complications and ill-defined descriptions of heart disease

I51.3: Intracardiac thrombosis, not elsewhere classified

The heart pumps blood through the body. Inside the heart are 4 chambers. There are 2 heart atria and 2 ventricles. Both heart atria and both ventricles are separated from each other by a partition.

A blood clot has formed in your heart. A blood clot can form for many reasons. For example, blood clots can form when the blood is no longer able to flow properly. This can happen if the heart is beating irregularly, for example.