Benign cyst of testis

This code represents a non-cancerous, fluid-filled sac that develops within the testis. It is typically asymptomatic and discovered incidentally during physical examination or imaging. Unlike a hydrocele, a benign cyst of the testis is a distinct lesion within the testicular parenchyma.

Use this code when documentation clearly identifies a benign, simple cyst located within the testis itself. This diagnosis is often confirmed by ultrasound, which differentiates it from other scrotal masses. It is appropriate for both initial diagnosis and follow-up of a stable, non-problematic testicular cyst.

• Differentiate from a hydrocele (N43.3-), which is fluid accumulation around the testis, not within it.
• Ensure documentation specifies "testis" rather than "epididymis" to avoid confusion with epididymal cysts (N43.4-).
• If malignancy is suspected or ruled out, ensure the final diagnosis reflects the benign nature of the cyst.