Secondary malignant neoplasm of other urinary organs

This code signifies the presence of a metastatic cancerous tumor that originated elsewhere in the body and has spread to a urinary organ other than the bladder, kidney, or ureter. This includes secondary malignancies affecting structures such as the urethra, prostate (in males), or other unspecified urinary sites.

Apply this code when documentation clearly states a secondary malignant neoplasm affecting a urinary organ not specifically coded elsewhere (e.g., urethra, prostate). Supporting documentation should include pathology reports confirming metastasis and physician notes indicating the specific urinary site involved.

• Always sequence the primary malignancy code first, followed by this code for the secondary site.
• Distinguish carefully between primary and secondary neoplasms; this code is exclusively for metastatic disease.
• Ensure the documentation specifies "other urinary organs" and not a more specific site like bladder (C79.11) or kidney (C79.10).