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Official Description

Removal of lens material; pars plana approach, with or without vitrectomy

© Copyright 2026 American Medical Association. All rights reserved.

Common Language Description

The procedure described by CPT® Code 66852 involves the removal of lens material from the eye using a pars plana approach, which is a surgical technique that accesses the posterior segment of the eye. This approach is characterized by an incision made in the pars plana, a region of the eye located between the iris and the vitreous body. The surgery may be performed with or without vitrectomy, a procedure that involves the removal of the vitreous gel that fills the eye. During the operation, the surgeon utilizes an operating microscope to visualize the internal structures of the eye clearly. The process begins with the creation of an incision in the conjunctiva and Tenon’s layer to expose the sclera, the white outer layer of the eyeball. To ensure a bloodless field, hemostasis is achieved through cautery. The sclera is then marked at the inferotemporal quadrant, and sutures are placed on either side of this mark to facilitate a precise incision. A microvitreoretinal (MVR) blade is used to make a careful incision in the sclera, allowing access to the posterior segment. An infusion line is inserted to maintain intraocular pressure and is secured with the sutures. The procedure may require additional sclerotomies to properly position the infusion line. Once the necessary access is established, the lens material is removed through irrigation and aspiration techniques, and if vitrectomy is indicated, vitreous fluid is also extracted. Throughout the procedure, the intraocular pressure is closely monitored to ensure the eye remains formed. At the conclusion, fluid may be injected to restore normal intraocular pressure, and the surgical site is meticulously closed to prevent any leakage, ensuring a successful outcome for the patient.

© Copyright 2026 Coding Ahead. All rights reserved.

1. Indications

The procedure described by CPT® Code 66852 is indicated for the removal of lens material in various clinical scenarios. The following conditions may warrant this surgical intervention:

  • Lens Opacification The presence of cataracts or other forms of lens opacification that impair vision and require surgical removal of the lens material.
  • Lens Dislocation Situations where the lens has become dislocated or subluxated, necessitating removal to restore proper ocular function.
  • Complications from Previous Surgery Cases where complications arise from prior ocular surgeries, leading to the need for lens material removal.
  • Vitreous Hemorrhage Instances of vitreous hemorrhage where the removal of lens material may be necessary to address associated visual impairment.

2. Procedure

The procedure for CPT® Code 66852 involves several critical steps to ensure the effective removal of lens material. The following outlines the procedural steps:

  • Step 1: Preparation and Anesthesia The patient is positioned appropriately, and local anesthesia is administered to ensure comfort during the procedure. The eye is prepped and draped in a sterile manner to maintain a clean surgical field.
  • Step 2: Incision and Access A pars plana incision is made by opening the conjunctiva and Tenon’s layer to expose the sclera. Cautery is used to achieve hemostasis, and the sclera is marked at the inferotemporal quadrant. Two sutures are placed on either side of the mark to guide the incision.
  • Step 3: Scleral Incision Using a microvitreoretinal (MVR) blade, the sclera is incised at the marked location between the two sutures. This incision allows access to the posterior segment of the eye.
  • Step 4: Infusion Line Insertion An infusion line is inserted through the scleral incision and secured with the previously placed sutures. This line is essential for maintaining intraocular pressure during the procedure.
  • Step 5: Additional Sclerotomies If necessary, a second sclerotomy may be made in the inferotemporal quadrant to position the infusion line correctly. Superior sclerotomies are then created using the MVR blade to facilitate further access.
  • Step 6: Lens Material Removal A light pipe and vitreo cutter are introduced into the posterior segment. The lens material is removed using irrigation and aspiration techniques, and if indicated, vitreous fluid is also extracted during this process.
  • Step 7: Monitoring Intraocular Pressure Throughout the irrigation and aspiration, the intraocular pressure is monitored and maintained to ensure the eye remains formed. Fluid may be injected to inflate the chamber to a normal intraocular pressure as the procedure concludes.
  • Step 8: Closure After the lens material has been successfully removed, instruments are withdrawn, and the sclerotomies are closed with sutures. The surgical site is checked for any fluid leakage. Finally, the infusion line is removed and the conjunctiva is closed to complete the procedure.

3. Post-Procedure

Post-procedure care following the removal of lens material via CPT® Code 66852 includes monitoring for any complications such as infection or bleeding. Patients are typically advised to follow up with their ophthalmologist to assess healing and visual outcomes. Instructions may include the use of prescribed eye drops to prevent infection and reduce inflammation. Patients should also be informed about signs of complications, such as increased pain, redness, or changes in vision, and advised to seek immediate medical attention if these occur. Recovery time may vary, but patients are generally encouraged to avoid strenuous activities and to adhere to any specific postoperative guidelines provided by their healthcare provider.

Short Descr REMOVAL OF LENS MATERIAL
Medium Descr RMVL LENS MATERIAL PARS PLANA W/WO VITRECTOMY
Long Descr Removal of lens material; pars plana approach, with or without vitrectomy
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) 0 - Payment restriction for assistants at surgery applies to this procedure...
Co-Surgeons (62) 1 - Co-surgeons could be paid, though supporting documentation is required...
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) P4B - Eye procedure - cataract removal/lens insertion
MUE 1
CCS Clinical Classification 15 - Lens and cataract procedures
RT Right side (used to identify procedures performed on the right side of the body)
LT Left side (used to identify procedures performed on the left 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).
54 Surgical care only: when 1 physician or other qualified health care professional performs a surgical procedure and another provides preoperative and/or postoperative management, surgical services may be identified by adding modifier 54 to the usual procedure number.
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.
59 Distinct procedural service: under certain circumstances, it may be necessary to indicate that a procedure or service was distinct or independent from other non-e/m services performed on the same day. modifier 59 is used to identify procedures/services, other than e/m services, that are not normally reported together, but are appropriate under the circumstances. documentation must support a different session, different procedure or surgery, different site or organ system, separate incision/excision, separate lesion, or separate injury (or area of injury in extensive injuries) not ordinarily encountered or performed on the same day by the same individual. however, when another already established modifier is appropriate it should be used rather than modifier 59. only if no more descriptive modifier is available, and the use of modifier 59 best explains the circumstances, should modifier 59 be used. note: modifier 59 should not be appended to an e/m service. to report a separate and distinct e/m service with a non-e/m service performed on the same date, see modifier 25.
62 Two surgeons: when 2 surgeons work together as primary surgeons performing distinct part(s) of a procedure, each surgeon should report his/her distinct operative work by adding modifier 62 to the procedure code and any associated add-on code(s) for that procedure as long as both surgeons continue to work together as primary surgeons. each surgeon should report the co-surgery once using the same procedure code. if additional procedure(s) (including add-on procedure(s) are performed during the same surgical session, separate code(s) may also be reported with modifier 62 added. note: if a co-surgeon acts as an assistant in the performance of additional procedure(s), other than those reported with the modifier 62, during the same surgical session, those services may be reported using separate procedure code(s) with modifier 80 or modifier 82 added, as appropriate.
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.)
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.)
80 Assistant surgeon: surgical assistant services may be identified by adding modifier 80 to the usual procedure number(s).
82 Assistant surgeon (when qualified resident surgeon not available): the unavailability of a qualified resident surgeon is a prerequisite for use of modifier 82 appended to the usual procedure code number(s).
AQ Physician providing a service in an unlisted health professional shortage area (hpsa)
AS Physician assistant, nurse practitioner, or clinical nurse specialist services for assistant at surgery
GC This service has been performed in part by a resident under the direction of a teaching physician
GW Service not related to the hospice patient's terminal condition
GZ Item or service expected to be denied as not reasonable and necessary
PT Colorectal cancer screening test; converted to diagnostic test or other procedure
SG Ambulatory surgical center (asc) facility service
XP Separate practitioner, a service that is distinct because it was performed by a different practitioner
XU Unusual non-overlapping service, the use of a service that is distinct because it does not overlap usual components of the main service
Date
Action
Notes
1991-01-01 Added First appearance in code book in 1991.
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