Malignant neoplasm of labia majora

This code signifies the presence of a cancerous tumor originating in the labia majora, the outer folds of the vulva. It represents a primary malignancy, meaning the cancer started in this specific anatomical location rather than spreading from another site.

This code is appropriate for documenting a confirmed diagnosis of primary malignant neoplasm affecting the labia majora. Documentation such as pathology reports confirming squamous cell carcinoma, adenocarcinoma, or other primary malignant cell types within the labia majora supports its use. It should be used when the physician's diagnosis explicitly states cancer of the labia majora.

• Always confirm the malignancy is primary to the labia majora; secondary or metastatic lesions would be coded differently.
• Distinguish from benign neoplasms or carcinoma in situ of the vulva, which have distinct codes.
• Ensure the documentation specifies "labia majora" and not a more general "vulva" if a more precise site is known.