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Malignant neoplasms of skin

International Classification of Diseases for Mortality and Morbidity Statistics, 11th Revision, v2024-01

A primary or metastatic tumour involving the skin. Primary malignant skin tumours most often are carcinomas (either basal cell or squamous cell carcinomas that arise from cells in the epidermis) or melanomas that arise from pigment-containing skin melanocytes. Metastatic tumours to the skin include carcinomas and lymphomas.

exclusions

• Carcinoma in situ of skin  (2E64)
• Metastatic malignant neoplasm involving skin  (2E08)
• Malignant mesenchymal neoplasms  (2B50-2B5Z)

sections/codes in this section (2C30-2C3Z)

• Melanoma of skin  (2C30)
• Squamous cell carcinoma of skin  (2C31)
• Basal cell carcinoma of skin  (2C32)
• Adnexal carcinoma of skin  (2C33)
• Cutaneous neuroendocrine carcinoma  (2C34)
• Cutaneous sarcoma  (2C35)
• Other specified malignant neoplasms of skin  (2C3Y)
• Malignant neoplasm of skin of unknown or unspecified type  (2C3Z)

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