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CPT®
0192T

CPT® Code 0192T
Deleted

Official Description

Insertion of anterior segment aqueous drainage device, without extraocular reservoir; external approach

© Copyright 2025 American Medical Association. All rights reserved.

Common Language Description

The procedure described by CPT® Code 0192T involves the insertion of an anterior segment aqueous drainage device using an external approach, specifically designed for the treatment of chronic or progressive open-angle glaucoma. This type of glaucoma is characterized by increased intraocular pressure due to impaired drainage of aqueous humor, which can lead to optic nerve damage and vision loss. The drainage device, which does not include an extraocular reservoir, is implanted to facilitate the outflow of aqueous humor, thereby reducing intraocular pressure. The external approach requires incising the conjunctiva and creating a scleral flap, which allows for direct access to the anterior chamber of the eye. This method is also referred to as non-penetrating deep sclerectomy, emphasizing its minimally invasive nature. The procedure is critical for patients who may not respond adequately to medication or other treatments, providing a surgical option to manage their condition effectively.

© Copyright 2025 Coding Ahead. All rights reserved.

1. Indications

The insertion of an anterior segment aqueous drainage device using CPT® Code 0192T is indicated for the treatment of chronic or progressive open-angle glaucoma. This condition is characterized by a gradual increase in intraocular pressure, which can lead to damage of the optic nerve and potential vision loss. The procedure is typically considered when other treatment options, such as medications or laser therapy, have proven insufficient in controlling intraocular pressure.

  • Chronic Open-Angle Glaucoma A condition where the drainage canals of the eye become clogged over time, leading to increased intraocular pressure.
  • Progressive Open-Angle Glaucoma A form of glaucoma that worsens over time, necessitating surgical intervention to prevent further optic nerve damage.

2. Procedure

The procedure for inserting an anterior segment aqueous drainage device via an external approach involves several key steps that ensure effective placement and function of the device.

  • Step 1: Conjunctival Incision The procedure begins with an incision made in the conjunctiva, the thin membrane covering the white part of the eye. This incision allows access to the underlying structures necessary for the placement of the drainage device.
  • Step 2: Creation of Scleral Flap Following the conjunctival incision, a partial-thickness scleral flap is created. The base of this flap is positioned at the corneoscleral junction, also known as the limbus. This flap is crucial as it provides a pathway for the drainage device to be implanted.
  • Step 3: Anterior Chamber Access An incision is then made into the anterior chamber of the eye. This step is essential for establishing aqueous flow, which is necessary for the proper functioning of the drainage device.
  • Step 4: Implantation of the Drainage Device A miniature drainage device, approximately the size of a grain of rice, is implanted between the anterior chamber and beneath the scleral flap. This device facilitates the drainage of aqueous humor from the anterior chamber to the space under the conjunctiva, effectively lowering intraocular pressure.
  • Step 5: Securing the Scleral Flap After the drainage device is in place, the scleral flap is secured with sutures to ensure stability and proper positioning of the device.
  • Step 6: Closure of Conjunctival Incision Finally, the conjunctival incision is closed, completing the procedure. The small size of the incisions typically allows for self-sealing, minimizing the need for extensive suturing.

3. Post-Procedure

Post-procedure care following the insertion of an anterior segment aqueous drainage device involves monitoring for any complications, such as infection or improper drainage. Patients may be prescribed topical medications, including antibiotics and anti-inflammatory agents, to promote healing and prevent infection. Regular follow-up appointments are essential to assess the effectiveness of the drainage device in managing intraocular pressure and to ensure that the surgical site is healing properly. Patients should be advised on signs of complications, such as increased pain, redness, or changes in vision, and instructed to report these to their healthcare provider promptly.
Short Descr INSERT ANT SEGMENT DRAIN EXT
Medium Descr ANT SEGMENT INSERTION DRAINAGE W/O RESERVOIR EXT
Long Descr Insertion of anterior segment aqueous drainage device, without extraocular reservoir; external approach
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 Procedure or Service, Multiple Reduction Applies
Type of Service (TOS) 2 - Surgery
Berenson-Eggers TOS (BETOS) P4E - Eye procedure - other
MUE Not applicable/unspecified.
CCS Clinical Classification 14 - Glaucoma procedures
Date
Action
Notes
2014-01-01 Deleted Deleted
2009-01-01 Added Code added.
2008-07-01 Added -
Code
Description
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