Malignant neoplasm of overlapping sites of penis

This code signifies a primary malignant tumor that extends across or involves multiple contiguous anatomical sub-sites of the penis, making it impossible to precisely assign to a single, more specific penile sub-site. This includes cases where the tumor originates in one area but has spread directly into an adjacent penile region.

Apply this code when documentation clearly indicates a primary penile malignancy involving overlapping boundaries of two or more penile sub-sites (e.g., glans and shaft, or shaft and prepuce). This code is appropriate when the tumor's extent prevents classification to a single, more specific C60.x code. Documentation should explicitly state the involvement of multiple, contiguous penile regions.

• Do not use this code if the primary site can be clearly identified as a single, specific penile sub-site (e.g., glans, shaft, prepuce).
• Ensure the documentation specifies "overlapping" or "contiguous" involvement of penile sub-sites, not just metastasis to other areas.
• Always sequence this code as the primary diagnosis when it represents the main reason for the encounter, followed by any relevant secondary diagnoses.