What is coronary artery disease?
by Administrator
Filed under Heart Disease Q & A
Coronary artery is listed as in the medical index of the ICD-9-CM 746.85.
But having trouble finding coronary disease.
What is coronary artery disease?
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Coronary artery disease (CAD) occurs when the arteries that supply blood to the heart muscle (the coronary arteries) become hardened and narrowed. The arteries harden and narrow due to buildup of a material called plaque (plak) on their inner walls. The buildup of plaque is known as atherosclerosis (ATH-er-o-skler-O-sis). As the plaque increases in size, the insides of the coronary arteries get narrower and less blood can flow through them. Eventually, blood flow to the heart muscle is reduced, and, because blood carries much-needed oxygen, the heart muscle is not able to receive the amount of oxygen it needs. Reduced or cutoff blood flow and oxygen supply to the heart muscle can result in angina (pain) and heart attack, blockage of blood supply leads to death of heart muscle and ultimately if the damaged are is big enough, heart failure and or death.