L13: Other bullous disorders
Other bullous disorders, represented by the code range L13 in the ICD-10 classification, refer to a group of skin conditions characterized by the formation of fluid-filled blisters or "bullae" on the skin. These conditions are typically caused by the body's immune system mistakenly attacking the skin or mucous membranes. While they share the common feature of blister formation, the disorders vary in terms of their causes, disease progression, and the body systems they affect. Symptoms usually include intense itching or burning sensations on the skin before the appearance of blisters. The blisters might be fragile and rupture easily, or they may be hard and persist for a longer time, depending on the specific disorder. The disease progression can be acute with sudden and severe outbreaks, or chronic with long-term persistence of the condition. While these disorders primarily affect the skin, some can also involve the mucous membranes of the mouth, eyes, or genitals.
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