2F21.0ICD-11 MMS 2026-01
Seborrhoeic keratosis
Description
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.
Index terms
- Seborrhoeic keratosis
- Basal cell papilloma
- Seborrheic wart
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- 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
Inclusions
- Basal cell papilloma
- Seborrheic wart
Sibling codes
2F21.Y– Other specified benign keratinocytic acanthomas
Foundation entity
Seborrhoeic keratosis – http://id.who.int/icd/entity/1627987797
Allowed postcoordination axes
Part of: 2F21: Benign keratinocytic acanthomas › 02: Neoplasms