Skin and subcutaneous (L00-L99).
- Atopic eczema (neurodermatitis).
- Chronic nail dystrophies – nail formation disorders that may be congenital (dysplasia and malformation syndromes) or acquired
- Eczema nails
- Vascular skin changes due to arterial or venous circulatory disorders.
- Lichen ruber (nodular lichen) of the nail organ – chronic inflammatory disease of the skin / mucosa.
- Nail psoriasis (nail psoriasis)
- Onychodystrophy (nail dystrophy) – symptom of many diseases in which fingernails or toenails show a growth or nutritional disturbance (dystrophy)
- Paronychia (nail bed inflammation).