L56: Other acute skin changes due to ultraviolet radiation

L56.2: Photocontact dermatitis [berloque dermatitis]

Various substances can cause the skin to react more sensitively to sunlight or artificial light than it would do normally. These substances can include cosmetics or chemicals that come into contact with your skin.

When light is shone on unprotected skin, small red spots may appear. The skin can also be flat, red and swollen. The extent may depend on how strong the light was and how long it has been on the skin. Small or fairly large blisters may appear on the reddened areas. The affected skin can be very sore or remain darker after the redness has faded.