L60-L75: Disorders of skin appendages

L70: Acne

Acne, classified under the L70 group in the ICD-10 WHO 2016 classification, incorporates a set of skin conditions originating from blocked hair follicles. The blockages typically comprise oil and dead skin cells, leading to whiteheads, blackheads, or pimples predominantly on the face, forehead, chest, upper back, and shoulders. Although acne is most common among teenagers, it affects people of all ages. Several factors can cause acne, including hormonal changes, certain medications, diet, and stress. Mild acne is characterized by occasional breakouts whereas more severe forms may lead to skin inflammation, deep cysts, skin damage or even scarring. It is worth noting that despite being annoying and potentially distressing, especially in severe cases, acne generally doesn’t pose a threat to physical health. The duration of the condition can vary and while some people outgrow it, others may experience it well into adulthood.