I70-I79: Diseases of arteries, arterioles and capillaries
I79: Disorders of arteries, arterioles and capillaries in diseases classified elsewhere
Disorders of arteries, arterioles, and capillaries in diseases classified elsewhere is a broad classification of conditions affecting the blood vessels. These disorders generally involve abnormal size, structure, or function of the arteries, arterioles, or capillaries. Arteries are large blood vessels that carry blood away from the heart, arterioles are smaller extensions of arteries that lead to capillaries, while capillaries are tiny, thin-walled vessels where oxygen and nutrients are exchanged with tissues. When these blood vessels become damaged or dysfunctional, it can disrupt blood flow, leading to various symptoms like pain, changes in skin color, and decreased mobility in affected areas. The causes can range from genetic disorders to diseases like diabetes or lupus, and the diseases can progress and worsen over time if not managed properly. These disorders can affect various systems in the body depending on where the affected blood vessels are located.
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