Understanding Psoriasis: Causes and Classification

• Psoriasis is a skin condition that most commonly occurs on the knees, elbows, trunk, and scalp.
• The cause of psoriasis is not fully understood, but it is thought to be caused by genetics and environmental factors.
• Psoriasis can be classified by the “X” value of the ICD-10 code. If the type of psoriasis is not specified, use code L40.9, unspecified.
• Psoriasis can be triggered by infections, cold weather, injuries, smoking, heavy alcohol consumption, medications, or sudden withdrawal of non-topical corticosteroids.
• Psoriasis can be treated with various medications and treatments.

Test your knowledge about psoriasis, a skin condition commonly found on the knees, elbows, trunk, and scalp. Learn about its causes including genetics and environmental factors, as well as how it is classified in the ICD-10 code system. Explore the triggers and treatment options for psoriasis.