Malignant melanoma of skin, unspecified

This code signifies a cancerous tumor originating from melanocytes in the skin, where the specific anatomical site of the melanoma is not documented. It represents a primary malignant neoplasm of the skin with an unknown or unstated location.

Utilize this code when the medical record clearly indicates a diagnosis of malignant melanoma of the skin, but the physician documentation does not specify the exact body site (e.g., trunk, limb, face). This code is appropriate when the pathology report confirms melanoma but the clinical note lacks site specificity.

• Avoid using this code if a more specific anatomical site for the melanoma is documented; always code to the highest level of specificity.
• Query the provider for clarification of the melanoma's primary site if possible, to allow for more precise coding.
• This code is a last resort when site specificity cannot be determined from available documentation.