CPT® Code 68816

Probing of the nasolacrimal duct (NLD) is a medical procedure aimed at addressing obstructions in the tear duct system, which can lead to excessive tearing or infections. The nasolacrimal duct is a small channel that allows tears to drain from the eye into the nasal cavity. In cases of congenital obstruction, which is often seen in infants, the duct fails to open properly into the nose, leading to potential complications. While many congenital obstructions resolve on their own by the age of 12 months, those that persist may require intervention. The procedure involves the insertion of a probe into the duct to locate and open the obstructed area. This may be accompanied by irrigation, where a saline solution is used to clear any debris or blockages. In adults, acquired obstructions can also occur, necessitating similar probing techniques. The procedure may be enhanced by transluminal balloon catheter dilation, where a balloon is inflated within the duct to widen it, thereby improving drainage. This comprehensive approach ensures that the nasolacrimal duct is adequately treated, promoting better eye health and comfort for the patient.