Malignant melanoma of skin of scalp and neck

This code signifies a cancerous tumor originating from melanocytes (pigment-producing cells) located on the skin of the scalp or neck. It represents a serious form of skin cancer with the potential for aggressive growth and metastasis.

Apply this code when documentation confirms a diagnosis of malignant melanoma specifically affecting the integumentary system of the scalp or neck region. This diagnosis is typically established via biopsy and histopathological examination.

• Ensure the documentation clearly specifies the anatomical site as either the scalp or neck skin.
• Differentiate from melanoma of other skin sites, which are coded elsewhere.
• Always sequence this code as the primary diagnosis when it is the reason for the encounter.