CPT® Code 70170

Dacryocystography is a specialized radiologic examination focused on the nasolacrimal ducts, which are the tear ducts responsible for draining tears from the eyes into the nasal cavity. This procedure is performed after the injection of a contrast medium, allowing for a detailed evaluation of the lacrimal drainage system. The primary purpose of dacryocystography is to investigate conditions associated with excessive tearing, which may indicate underlying issues such as blockages or other pathologies affecting the lacrimal system. Additionally, this examination is valuable for both pre-operative and post-operative assessments, providing critical information regarding the status of the nasolacrimal ducts before and after surgical interventions. During the procedure, anesthetic drops are applied to the patient's eyes to minimize discomfort. The lacrimal canaliculi, which are small channels that carry tears, are then cannulated, meaning a small tube is inserted to facilitate the injection of the contrast medium. This medium can be either water-soluble or oil-based, depending on the specific requirements of the examination. Once the contrast is injected, a series of radiographic images are captured at various angles, allowing the physician to visualize the entire lacrimal pathway. The interpretation of these images is crucial, as the physician looks for signs of pathology, including stenosis (narrowing of the ducts), blockages, abnormal growths, or the presence of fistulae (abnormal connections). Following the examination, a comprehensive written report detailing the findings is generated, which is essential for guiding further clinical decisions. It is important to note that CPT® Code 70170 specifically reports the components of radiologic supervision and interpretation associated with this procedure, rather than the entire dacryocystography process itself.