D37-D48: Neoplasms of uncertain or unknown behaviour

D40: Neoplasm of uncertain or unknown behaviour of male genital organs

Neoplasms of uncertain or unknown behavior refer to growths in the male genital organs where the cell behavior can't be immediately identified as either clearly benign (noncancerous) or malignant (cancerous). This means doctors aren't sure whether these cells will stay localized to their original area, characteristic of benign tumors, or if they'll spread to other areas of the body, as cancerous cells do. Conditions within this group can affect different parts of the male reproductive system, including the penis, testes, and prostate. Common symptoms may include unusual lumps or swellings, discomfort or pain in the affected area, changes in urinary or sexual function, and unexplained weight loss. The speed and nature of disease progression can vary widely depending on the location and nature of the neoplasm. Though the precise causes are often unknown, these conditions may be linked to factors like aging, personal history of other cancers, or exposure to certain environmental toxins.