ICD-10 Code C63 – Malignant neoplasm of other and unspecified male genital organs (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code C63 – Malignant neoplasm of other and unspecified male genital organs
What it is
C63 identifies a malignant tumor arising in male genital organs not otherwise specified in the ICD-10 classification. Use it when documentation confirms cancer in an unspecified or other male genital site.
Clinical signs
Clinical features vary; refer to documentation. Findings may include a documented mass, abnormal imaging, biopsy-proven malignancy, or symptoms related to the affected genital organ.
When to use this code
Use C63 when the provider documents a malignant neoplasm of a male genital organ that is not named more specifically in the record. It is appropriate when the site is described as other, unspecified, or not further defined. If the note identifies a more exact anatomic site, code that specific diagnosis instead.
Do not use for
Do not use C63 for benign tumors, in situ lesions, or cancers with a clearly documented specific site that has its own ICD-10 code. Check documentation if the anatomy or laterality is unclear.
Coding tip
Confirm the exact organ and whether the malignancy is primary, secondary, or unspecified before assigning C63.