L80-L99: Other disorders of the skin and subcutaneous tissue
L85: Other epidermal thickening
The identified group of conditions, referred to as 'other epidermal thickening', comprises various skin conditions characterized by an overgrowth, or excess, of the topmost layer of the skin, the epidermis. While the specific reasons for this thickening can vary, it often results from chronic exposure to irritants, physical trauma, or ongoing inflammation. The common thread among these conditions is that the skin's response to these types of stressors results in an unusually thick outer skin layer. Symptoms generally present as rough, hardened skin and can occur anywhere on the body, although they're more common on the hands and feet due to constant use and friction. The progression of these conditions largely depend on the triggering factor but they generally do not affect an individual's overall health. Despite being primarily a dermatological concern, it can impact quality of life through discomfort or cosmetic displeasure.
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