L20-L30: Dermatitis and eczema

L29: Pruritus

Pruritus is a group of conditions commonly characterized by intense itchiness of the skin. This discomfort can affect any part of the body and often worsen during certain times, such as at night. Pruritus isn't a disease itself but rather a symptom of several underlying conditions, some of which include skin disorders like eczema and hives, or systemic diseases such as liver or kidney disease. While the exact cause of pruritus can vary, it generally arises due to inflammation or an allergic reaction that stimulates particular nerves in the skin. Typical disease progression may involve persistent scratching leading to skin injuries, like breaks or abrasions, which can increase the risk of a secondary bacterial skin infection. Therefore, managing the underlying cause is crucial in alleviating the itch and preventing further complications.