- G20, E60, F99 -

Improving the quality of life for people with Xeroderma Pigmentosum XP and other diagnosed UV light conditions. In a Million Xeroderma Pigmentosa XP is a rare autosomal recessive genetic disorder that affects about one in one million people in the United States. Percent Roughly 20 of patients affected with XP develop a progressive neurological disease. Percent Approximately 50 of individuals with XP experience acute sun sensitivity within the first few months of life.