CPT® Code 68815

The procedure described by CPT® Code 68815 involves the probing of the nasolacrimal duct (NLD), which is also known as the tear duct. This procedure may include irrigation and the insertion of a tube or stent. The nasolacrimal duct is a crucial structure that facilitates the drainage of tears from the eye into the nasal cavity. In children, probing is often performed to address congenital obstructions, which occur when the duct fails to open properly into the nose. Such obstructions are common and typically resolve on their own by the age of 12 months. However, if the obstruction persists beyond this age, intervention may be necessary. During the procedure, the puncta, which are the small openings in the eyelids where tears drain, are dilated to allow for the insertion of a probe. This probe is carefully navigated through the duct until it reaches the nasal cavity, confirming the location of the obstruction. In some cases, irrigation with a saline solution containing fluorescein dye may be performed to clear any debris or obstructions within the duct. If the probing and irrigation are successful but the duct remains narrowed or obstructed, a silicone tube or stent may be inserted to keep the duct open. This tube is typically left in place for about six months and is removed in a separate procedure. The use of CPT® Code 68815 is appropriate when these additional steps are taken following the initial probing and irrigation. This procedure is essential for restoring normal tear drainage and alleviating symptoms associated with nasolacrimal duct obstructions.