CPT® Code 68811

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 children, congenital obstructions are common, where the duct fails to open properly into the nose, often resolving on its own by the age of 12 months. However, if the obstruction persists beyond this age, intervention may be necessary. The procedure involves the insertion of a probe into the duct, which may be accompanied by irrigation to clear any blockages. This procedure is typically performed under general anesthesia, especially in pediatric cases, to ensure the comfort and safety of the patient. The use of general anesthesia allows for a more thorough examination and treatment of the duct without causing distress to the patient. The probing may also include the use of saline solution with fluorescein dye to help visualize and clear any debris or obstructions within the duct. This procedure is essential for restoring normal tear drainage and preventing complications associated with tear duct obstructions.