CPT® Code 51500

The procedure described by CPT® Code 51500 involves the excision of a urachal cyst or sinus, which may be performed with or without the repair of an umbilical hernia. The urachus is a fetal duct that typically closes off between the second and fourth month of gestation, transforming into the median umbilical ligament. In some cases, this duct does not fully obliterate, leading to the formation of a urachal cyst or sinus that can connect the umbilicus to the bladder. While these conditions are often asymptomatic, surgical intervention is indicated if an infection occurs. The surgical process begins with the placement of a catheter through the urethra into the bladder to facilitate access. An incision is made in the midline of the abdomen, starting just below the umbilicus and extending over the bladder. The surgeon dissects through the underlying tissues, divides the anterior rectus abdominus muscle, and exposes the urachal sinus or cyst. The procedure may also involve the repair of an umbilical hernia if present, which includes the excision of the hernia sac and closure of the abdominal wall defect. This comprehensive approach ensures the complete removal of the urachal anomaly while addressing any associated hernia, promoting optimal recovery and minimizing complications.