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2025 ICD-10-CM code C63.9

Malignant neoplasm of male genital organ, unspecified.

Use additional code from Chapter 4 to identify functional activity associated with the neoplasm if needed. If the neoplasm overlaps contiguous sites, use code .8 ("overlapping lesion") unless a specific combination code exists. For multiple non-contiguous neoplasms of the same site, code each site separately.

Medical necessity is based on the presence of signs, symptoms, or other evidence suggesting a malignant neoplasm in the male genital area. Further investigation and treatment are necessary to confirm the diagnosis, determine the stage of cancer, and provide appropriate care.

Diagnosis and treatment of malignant neoplasms of the male genital organs.

In simple words: Cancer in an unspecified male genital organ.It's not clear which specific part is affected.

Malignant neoplasm affecting an unspecified male genital organ. The specific site of the neoplasm within the male genital organs is not documented or not known.

Example 1: A patient presents with a non-healing sore on the penis, but biopsy results are inconclusive about the specific organ of origin., A mass is detected in the scrotum, but further diagnostic tests are needed to determine the primary site of the malignancy., A patient with generalized symptoms like pain and swelling in the genital area undergoes imaging studies revealing a tumor, but the precise origin within the male genital organs remains unknown.

Clinical findings, imaging results, biopsy reports (if available), and any other diagnostic tests performed.

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