ICD-11 classes
14 Diseases of the skin
Malignant neoplasms involving the skin
Malignant neoplasms of skin

ICD-11 Malignant neoplasms of skin

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.

The diagnosis includes nothing.

Diagnosis contains 8 clarifying diagnoses:

1. 2C30 — Melanoma of skin
   It contains 6 clarifying diagnoses.
2. 2C31 — Squamous cell carcinoma of skin
   It contains 4 clarifying diagnoses.
3. 2C32 — Basal cell carcinoma of skin
   It contains 5 clarifying diagnoses.
4. 2C33 — Adnexal carcinoma of skin
5. 2C34 — Cutaneous neuroendocrine carcinoma
6. 2C35 — Cutaneous sarcoma
   It contains 2 clarifying diagnoses.
7. 2C3Y — Other specified malignant neoplasms of skin
8. 2C3Z — Malignant neoplasm of skin of unknown or unspecified type

The diagnosis is coded elsewhere:

• Malignant neoplasms, stated or presumed to be primary, of specified sites, except of lymphoid, haematopoietic, central nervous system or related tissues #1778
• Malignant neoplasms of skin #2177