2F21.0 Seborrhoeic keratosis

International Classification of Diseases for Mortality and Morbidity Statistics, 11th Revision, v2025-01

Seborrhoeic keratoses are very common benign neoplasms of epidermal keratinocytes which increase in prevalence and number with age. They are commonly multiple and are very variable in shape and colour. Because of the sometimes intense pigmentation they are frequently mistaken for melanocytic tumours.

inclusions

• Basal cell papilloma
• Seborrheic wart

postcoordination

synonyms

• Seborrhoeic keratosis
• Basal cell papilloma
• Seborrheic wart
• Acanthotic seborrhoeic keratosis
• Adenoid seborrhoeic keratosis
• Hyperkeratotic seborrhoeic keratosis
• Inflamed seborrhoeic keratosis
• Irritated seborrhoeic keratosis
• Nested seborrhoeic keratosis
• Clonal seborrhoeic keratosis
• Pigmented seborrhoeic keratosis
• Plane seborrhoeic keratosis
• Flat seborrhoeic keratosis
• Dermatosis papulosa nigra
• Traumatized seborrhoeic keratosis

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