ICD-10 Code C62.12 – Malignant neoplasm of descended left testis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code C62.12 – Malignant neoplasm of descended left testis
What it is
This code identifies a malignant tumor arising in the left testis when it is descended into the scrotum. Use it for cancer documented as involving the descended left testis, not for unspecified or undescended testicular sites.
Clinical signs
Typical findings include a painless testicular mass, enlargement, or firmness on exam. Clinical features vary; refer to documentation, imaging, and pathology when available.
When to use this code
Use C62.12 when the provider documents primary cancer of the descended left testis. It is appropriate for confirmed malignancy, or when the record clearly states suspected or probable disease in accordance with your coding rules. Verify laterality and that the testis is descended.
Do not use for
Do not use this code for right-sided, bilateral, or unspecified testicular cancer. Do not use it for undescended testis malignancy; check documentation for the correct site-specific code.
Coding tip
Confirm laterality and descent status in the operative note, pathology report, or assessment before assigning C62.12.