Unsp malignant neoplasm skin/ left upper limb, inc shoulder

This code signifies a cancerous growth originating from the skin cells on the left upper extremity, encompassing the shoulder region. The specific type of skin malignancy (e.g., basal cell carcinoma, squamous cell carcinoma, melanoma) is not documented or is unknown.

Apply this code when documentation indicates a malignant skin neoplasm on the left arm or shoulder, but the pathology report or clinical notes do not specify the histological type. This is often used for initial encounters or when awaiting definitive pathology results.

• Avoid using this code if a more specific histological type of skin cancer is documented (e.g., basal cell carcinoma).
• Ensure the laterality (left upper limb) is clearly documented.
• If the exact site within the left upper limb (e.g., forearm, upper arm) is known, consider using a more specific C44.6- subcategory if available and supported by documentation.