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Official Description

Removal of epithelial downgrowth, anterior chamber of eye

© Copyright 2026 American Medical Association. All rights reserved.

Common Language Description

Epithelial downgrowths, also known as ingrowths, represent a significant complication that can arise following either surgical or nonsurgical trauma to the eye. This condition occurs when the corneal or conjunctival epithelium infiltrates the anterior chamber of the eye, leading to abnormal growth on critical structures such as the back of the cornea, the trabecular meshwork, and/or the anterior surface of the iris. Clinically, epithelial downgrowths may manifest in various forms, including fluid-filled cystic lesions or as free-floating epithelial cells within the anterior chamber. Patients may experience a range of symptoms associated with this condition, including ocular pain, elevated intraocular pressure which can lead to glaucoma, and signs of inflammation. The management of epithelial downgrowth typically involves a surgical procedure to remove the aberrant epithelial tissue, which is performed under topical anesthesia to ensure patient comfort. The procedure is conducted using specialized instruments and techniques to accurately locate and excise the downgrowth while preserving surrounding ocular structures.

© Copyright 2026 Coding Ahead. All rights reserved.

1. Indications

The procedure for the removal of epithelial downgrowth is indicated in the following situations:

  • Complications from Eye Surgery Epithelial downgrowth may occur as a complication following various ocular surgical procedures, necessitating intervention.
  • Trauma to the Eye Nonsurgical trauma to the eye can lead to the development of epithelial downgrowth, requiring surgical removal to alleviate symptoms and prevent further complications.
  • Symptoms of Pain Patients experiencing significant ocular pain due to the presence of epithelial downgrowth may require this procedure for relief.
  • Increased Intraocular Pressure The presence of epithelial downgrowth can lead to elevated intraocular pressure, which may necessitate surgical intervention to prevent glaucoma.
  • Signs of Inflammation Inflammatory responses in the eye associated with epithelial downgrowth may indicate the need for removal to restore ocular health.

2. Procedure

The procedure for the removal of epithelial downgrowth involves several critical steps to ensure effective treatment and patient safety.

  • Anesthesia Administration The eye is first anesthetized using a topical ophthalmic anesthetic to minimize discomfort during the procedure.
  • Identification of the Downgrowth Using an operative microscope or slit lamp, the surgeon locates the flap edge from the previous incision or traumatic wound. This step is crucial for accessing the area of downgrowth.
  • Opening the Flap The flap is carefully opened using a Sinskey hook or a similar instrument to expose the downgrowth for removal.
  • Elevation of the Flap If the area of downgrowth is extensive, a cyclodialysis spatula may be employed to further elevate the flap, providing better access to the affected tissue.
  • Scraping the Stromal Bed The stromal bed is then scraped with a blade or knife to remove any adherent epithelial cells, ensuring complete excision of the downgrowth.
  • Replacement of the Flap After the downgrowth has been adequately addressed, the flap is replaced to restore the anatomical integrity of the eye.
  • Surgical Removal of Epithelial Tissue Alternatively, if necessary, the epithelial tissue can be removed using direct electrocautery or photocoagulation techniques to ensure thorough excision.
  • Cystic Lesion Management In cases where the downgrowth presents as a cystic lesion, the surgeon may perform cyst aspiration followed by cauterization, diathermy, or injection of sclerosing agents or alcohol to eliminate the lesion.
  • Irrigation of the Eye Following the removal of the downgrowth, the eye is irrigated to clear any debris and ensure a clean surgical field.
  • Application of Bandage A corneal contact lens bandage may be placed to protect the eye postoperatively, followed by the instillation of antibiotic and/or steroid eye drops to prevent infection and reduce inflammation.
  • Patching the Eye Finally, the eye is patched to provide additional protection during the initial recovery phase.

3. Post-Procedure

After the removal of epithelial downgrowth, patients can expect a recovery period that may involve monitoring for any signs of complications such as infection or increased intraocular pressure. The application of a corneal contact lens bandage helps to protect the eye during healing. Patients are typically instructed to use prescribed antibiotic and/or steroid eye drops to aid in recovery and reduce inflammation. Follow-up appointments are essential to assess the healing process and ensure that the downgrowth has been completely removed, as well as to monitor for any recurrence of symptoms. It is important for patients to adhere to post-operative care instructions and report any unusual symptoms to their healthcare provider promptly.

Short Descr REMOVE EYE LESION
Medium Descr RMVL EPITHELIAL DOWNGROWTH ANT CHAMBER EYE
Long Descr Removal of epithelial downgrowth, anterior chamber of eye
Status Code Active Code
Global Days 090 - Major Surgery
PC/TC Indicator (26, TC) 0 - Physician Service Code
Multiple Procedures (51) 2 - Standard payment adjustment rules for multiple procedures apply.
Bilateral Surgery (50) 1 - 150% payment adjustment for bilateral procedures applies.
Physician Supervisions 09 - Concept does not apply.
Assistant Surgeon (80, 82) 2 - Payment restriction for assistants at surgery does not apply 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 Hospital Part B services paid through a comprehensive APC
ASC Payment Indicator Surgical procedure on ASC list in CY 2007; payment based on OPPS relative payment weight.
Type of Service (TOS) 2 - Surgery
Berenson-Eggers TOS (BETOS) P4E - Eye procedure - other
MUE 1
CCS Clinical Classification 20 - Other intraocular therapeutic procedures
79 Unrelated procedure or service by the same physician or other qualified health care professional during the postoperative period: the individual may need to indicate that the performance of a procedure or service during the postoperative period was unrelated to the original procedure. this circumstance may be reported by using modifier 79. (for repeat procedures on the same day, see modifier 76.)
RT Right side (used to identify procedures performed on the right side of the body)
51 Multiple procedures: when multiple procedures, other than e/m services, physical medicine and rehabilitation services or provision of supplies (eg, vaccines), are performed at the same session by the same individual, the primary procedure or service may be reported as listed. the additional procedure(s) or service(s) may be identified by appending modifier 51 to the additional procedure or service code(s). note: this modifier should not be appended to designated "add-on" codes (see appendix d).
58 Staged or related procedure or service by the same physician or other qualified health care professional during the postoperative period: it may be necessary to indicate that the performance of a procedure or service during the postoperative period was: (a) planned or anticipated (staged); (b) more extensive than the original procedure; or (c) for therapy following a surgical procedure. this circumstance may be reported by adding modifier 58 to the staged or related procedure. note: for treatment of a problem that requires a return to the operating/procedure room (eg, unanticipated clinical condition), see modifier 78.
78 Unplanned return to the operating/procedure room by the same physician or other qualified health care professional following initial procedure for a related procedure during the postoperative period: it may be necessary to indicate that another procedure was performed during the postoperative period of the initial procedure (unplanned procedure following initial procedure). when this procedure is related to the first, and requires the use of an operating/procedure room, it may be reported by adding modifier 78 to the related procedure. (for repeat procedures, see modifier 76.)
LT Left side (used to identify procedures performed on the left side of the body)
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2002-01-01 Changed Code description changed.
Pre-1990 Added Code added.
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