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The procedure described by CPT® Code 0177T involves the transluminal dilation of the aqueous outflow canal, specifically Schlemm's canal, with the retention of a device or stent. This intervention is primarily indicated for the treatment of open-angle glaucoma, a condition characterized by increased intraocular pressure (IOP) that can lead to optic nerve damage and vision loss. The procedure is also known as glaucoma canaloplasty or enhanced viscocanalostomy. During the procedure, the surgeon creates a scleral flap to access the canal, which is then deroofed to facilitate the dilation process. A flexible microcatheter or cannula is introduced into the canal, allowing for the instillation of a viscoelastic substance, such as high viscosity sodium hyaluronate, to aid in the dilation and ensure smooth advancement of the cannula. The key distinction of CPT® Code 0177T is the retention of a stent or suture within the canal, which serves to maintain the newly created opening and enhance fluid drainage from the eye. This retention mechanism is crucial for effectively managing IOP and improving patient outcomes in those suffering from glaucoma.
© Copyright 2025 Coding Ahead. All rights reserved.
The procedure described by CPT® Code 0177T is indicated for the treatment of open-angle glaucoma, a condition that results in increased intraocular pressure (IOP) and can lead to progressive optic nerve damage. The following specific indications apply:
The procedure for CPT® Code 0177T involves several detailed steps to ensure effective dilation of the aqueous outflow canal. The following procedural steps are outlined:
Post-procedure care following the transluminal dilation of the aqueous outflow canal with stent retention involves monitoring the patient for any immediate complications and ensuring proper healing. Patients may be advised to follow up with their ophthalmologist to assess intraocular pressure and the effectiveness of the procedure. Additionally, the use of topical medications may be prescribed to manage inflammation and prevent infection. It is essential for patients to adhere to follow-up appointments to evaluate the success of the stent or suture in maintaining canal patency and to monitor for any potential adverse effects.
| Short Descr | AQU CANAL DILAT W RETENT | Medium Descr | AQUEOUS CANAL TRLUML DILAT W STENT RETENTION | Long Descr | Transluminal dilation of aqueous outflow canal; with retention of device or stent | Status Code | Carriers Price the Code | Global Days | XXX - Global Concept Does Not Apply | PC/TC Indicator (26, TC) | 0 - Physician Service Code | Multiple Procedures (51) | 0 - No payment adjustment rules for multiple procedures apply. | Bilateral Surgery (50) | 0 - 150% payment adjustment for bilateral procedures does NOT apply. | Physician Supervisions | 09 - Concept does not apply. | Assistant Surgeon (80, 82) | 0 - Payment restriction for assistants at surgery applies to this procedure... | Co-Surgeons (62) | 0 - Co-surgeons not permitted for this procedure. | Team Surgery (66) | 0 - Team surgeons not permitted for this procedure. | Diagnostic Imaging Family | 99 - Concept Does Not Apply | APC Status Indicator | Significant Procedure, Multiple Reduction Applies | Type of Service (TOS) | 2 - Surgery | Berenson-Eggers TOS (BETOS) | none | MUE | Not applicable/unspecified. | CCS Clinical Classification | 14 - Glaucoma procedures |
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