
Erythema anulare centrifugum L53.1
Erythema anulare centrifugum: Large, polycyclically limited, symptomless, sharply defined erythema bands. 54-year-old woman. No organ symptoms known.

Polymorphic light eruption L56.4
Light dermatosis, polymorphic, for many years recurrent, very itchy, red, 0.1-0.4 cm large, smooth papules and spots on the right forearm in a 50-year-old man, each occurring a few hours after exposure to the sun.

Polymorphic light eruption L56.4
Light dermatosis, polymorphic: multiple, itchy, papules, occasionally also vesicles with simultaneous swelling of the back of the hand

Nontuberculous Mycobacterioses (overview) A31.9
Mycobacterioses, atypical. swimming pool granulomas: In a period of 6-8 months development of painless, partly ulcerated and crusty red nodules along the lymphatic pathways on the hand and forearm.