L80-L99: Other disorders of the skin and subcutaneous tissue

L90: Atrophic disorders of skin

Atrophic disorders of the skin constitute a group of skin conditions that are characterized by skin thinning or loss. The skin may appear transparent, fragile or wrinkled due to the loss of epidermal or dermal substances. These disorders can result from various causes including age, exposure to sunlight, genetic factors, certain medications, or systemic diseases like diabetes and certain auto-immune conditions. Common symptoms might include itchy or dry skin, and increased susceptibility to bruising or tearing. Disease progression varies depending on individual cases and the underlying cause. It mainly affects the integumentary system, which includes the skin and its appendages. In some instances, atrophic skin disorders may also indicate underlying systemic conditions, hence timely evaluation is vital.