L60-L75: Disorders of skin appendages
L66: Cicatricial alopecia [scarring hair loss]
Cicatricial alopecia, also known as scarring hair loss, is a group of conditions that cause hair loss through the destruction of hair follicles and their replacement with scar tissue. This destruction can occur due to various reasons like inflammation, skin diseases, burns, injuries, or certain medical treatments. Initially, individuals with this condition may experience symptoms like redness, heat, pain, itching, or the display of small bumps or blisters with pus in the affected area, which houses the hair follicles. Over time, these symptoms may lead to permanent hair loss in the affected areas as the hair follicles are destroyed and replaced by scar tissue. Different types of Cicatricial alopecia vary in their progression rate and pattern of hair loss, but all affect the skin's ability to grow hair. This condition can occur in both males and females of all ages, affecting the scalp most commonly, although any hair-bearing skin can be involved.
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