Carcinoma in situ of scrotum

This code represents the presence of abnormal, non-invasive epithelial cells confined to the outermost layer of the scrotal skin. These cells show malignant characteristics but have not penetrated the basement membrane, meaning they are localized and have not spread to surrounding tissues. This condition is considered a pre-invasive form of squamous cell carcinoma.

Use this code when documentation clearly indicates carcinoma in situ affecting the scrotum, often identified through biopsy results. This diagnosis typically follows the identification of suspicious lesions, such as Bowen's disease or erythroplasia of Queyrat, specifically located on the scrotal skin. Pathological reports confirming the non-invasive nature of the malignant cells are essential for accurate coding.

• Differentiate from invasive squamous cell carcinoma of the scrotum, which would be coded under C60.1.
• Ensure the pathology report explicitly states "in situ" or "intraepithelial neoplasia" for the scrotum.
• Do not use this code for benign lesions or dysplastic changes that are not yet classified as carcinoma in situ.