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Official Description

Monitoring of intraocular pressure during vitrectomy surgery (List separately in addition to code for primary procedure)

© Copyright 2026 American Medical Association. All rights reserved.

Common Language Description

The CPT® Code 0173T refers to the monitoring of intraocular pressure (IOP) during vitrectomy surgery, which is a specialized surgical procedure performed on the eye. Vitrectomy involves the removal of the vitreous gel from the eye, and during this process, there can be significant fluctuations in IOP. These fluctuations are critical to monitor because they can affect the vascular perfusion pressure, which is essential for maintaining adequate blood flow to the optic nerve and retina. If the IOP becomes too high or too low, it may compromise the health of these vital structures, potentially leading to poor surgical outcomes. To address this concern, a new technology has been developed that allows for real-time measurement of IOP during the procedure. This technology includes a pressure monitoring device that is placed adjacent to the eye and secured with tape. The device features transducers that are carefully positioned and calibrated to ensure accurate readings. It is connected to a computer console that continuously monitors the IOP throughout the surgery. The ongoing investigation into the relationship between IOP fluctuations and surgical outcomes aims to enhance the safety and effectiveness of vitrectomy procedures.

© Copyright 2026 Coding Ahead. All rights reserved.

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