Atresia of vas deferens

This code represents the congenital absence or complete closure of the vas deferens, the tube that carries sperm from the epididymis to the ejaculatory duct. This condition is a cause of obstructive azoospermia, leading to male infertility. It can be unilateral or bilateral.

Use this code for patients diagnosed with congenital atresia of the vas deferens, typically identified during an infertility workup or physical examination. Documentation should clearly state the congenital nature of the condition and specify the affected side if known (e.g., unilateral, bilateral).

• Differentiate from acquired obstruction of the vas deferens, which would be coded differently.
• Specify laterality if documented (e.g., Q55.30 for unspecified, Q55.31 for unilateral, Q55.32 for bilateral).
• Consider additional codes for associated congenital anomalies if present, such as renal agenesis or cystic fibrosis, as these conditions can be linked.