Unspecified malignant neoplasm of skin of nose

This code signifies a cancerous growth originating in the skin tissue of the nose, where the specific type of malignancy (e.g., basal cell carcinoma, squamous cell carcinoma, melanoma) has not been identified or documented. It indicates a primary malignant tumor affecting the nasal skin.

Use this code when documentation confirms a malignant neoplasm of the nasal skin, but the pathology report or physician's notes do not specify the histological type. This is often an interim code used before definitive pathology results are available or when the specific type remains undetermined.

• Avoid using this code if a more specific histological type (e.g., basal cell, squamous cell) is documented; always code to the highest level of specificity.
• Query the provider for clarification if the pathology report is pending or incomplete to obtain a more precise diagnosis.
• This code should be sequenced as a primary diagnosis when the malignant neoplasm is the reason for the encounter.