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Official Description

Removal of lens material; aspiration technique, 1 or more stages

© Copyright 2026 American Medical Association. All rights reserved.

Common Language Description

The procedure described by CPT® Code 66840 involves the removal of lens material from the eye using an aspiration technique. This surgical intervention is typically performed when there is a need to extract lens material that may be causing visual impairment or other complications. The process begins with the visualization of the eye through an operating microscope, which allows the surgeon to have a clear view of the anterior chamber of the eye. Access to this chamber is achieved by creating one or more small openings, known as paracenteses, using a needle or blade. Once access is established, an irrigation and aspiration tool is introduced into the anterior chamber through these openings. The surgeon then carefully pulls the lens material from the outer edges towards the center of the pupil, ensuring that the material is aspirated effectively. Throughout the procedure, the intraocular pressure is monitored, and if necessary, fluid may be injected to maintain normal pressure within the anterior chamber. After the lens material has been successfully removed, the instruments are withdrawn, and the surgeon checks the incision sites for any signs of fluid leakage. Depending on the condition of the incisions, sutures may be applied to ensure proper closure and healing.

© Copyright 2026 Coding Ahead. All rights reserved.

1. Indications

The procedure associated with CPT® Code 66840 is indicated for the removal of lens material in various clinical scenarios. The following conditions may warrant this surgical intervention:

  • Complicated Cataract Surgery The presence of residual lens material following cataract extraction that may lead to visual disturbances or other complications.
  • Lens Dislocation Situations where the lens has become dislocated and requires removal to restore proper ocular function.
  • Intraocular Foreign Body The presence of foreign material within the eye that necessitates removal to prevent further ocular damage.

2. Procedure

The procedure for CPT® Code 66840 involves several critical steps to ensure the safe and effective removal of lens material. Each step is designed to facilitate access to the anterior chamber and the careful extraction of lens debris.

  • Step 1: Visualization The surgeon begins by visualizing the eye using an operating microscope, which provides a magnified view of the anterior chamber, allowing for precise maneuvering during the procedure.
  • Step 2: Access Creation Access to the anterior chamber is achieved by creating one or more paracenteses, which are small incisions made with a needle or blade. These openings allow for the introduction of surgical instruments.
  • Step 3: Instrument Insertion An irrigation and aspiration tool is then inserted through the paracentesis into the anterior chamber. This tool is essential for both irrigating the area and aspirating the lens material.
  • Step 4: Material Removal The surgeon gently pulls the lens material from the periphery of the anterior chamber towards the pupillary center, ensuring that the material is aspirated effectively to prevent any residual debris.
  • Step 5: Pressure Monitoring Throughout the procedure, the intraocular pressure is monitored. If necessary, fluid may be injected into the anterior chamber to maintain normal pressure levels, which is crucial for the health of the eye.
  • Step 6: Instrument Withdrawal After the lens material has been successfully removed, the irrigation and aspiration instruments are carefully withdrawn from the eye.
  • Step 7: Wound Assessment The surgeon checks the incision sites for any signs of fluid leakage, ensuring that the integrity of the eye is maintained post-procedure.
  • Step 8: Suture Application If required, sutures may be placed to close the incision(s) securely, promoting proper healing and minimizing the risk of complications.

3. Post-Procedure

After the completion of the procedure associated with CPT® Code 66840, patients may require specific post-operative care to ensure optimal recovery. It is essential to monitor the eye for any signs of complications, such as infection or increased intraocular pressure. Patients may be advised to avoid strenuous activities and to follow up with their healthcare provider for routine examinations. Additionally, the use of prescribed eye drops may be necessary to aid in healing and to prevent inflammation. The surgeon will provide detailed instructions regarding activity restrictions and follow-up appointments to ensure a successful recovery.

Short Descr REMOVAL OF LENS MATERIAL
Medium Descr RMVL LENS MATERIAL ASPIR TQ 1/> STAGES
Long Descr Removal of lens material; aspiration technique, 1 or more stages
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) 1 - Statutory 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 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)
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.)
SG Ambulatory surgical center (asc) facility service
50 Bilateral procedure: unless otherwise identified in the listings, bilateral procedures that are performed at the same session, should be identified by adding modifier 50 to the appropriate 5 digit code. note: this modifier should not be appended to designated "add-on" codes (see appendix d).
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).
52 Reduced services: under certain circumstances a service or procedure is partially reduced or eliminated at the discretion of the physician or other qualified health care professional. under these circumstances the service provided can be identified by its usual procedure number and the addition of modifier 52, signifying that the service is reduced. this provides a means of reporting reduced services without disturbing the identification of the basic service. note: for hospital outpatient reporting of a previously scheduled procedure/service that is partially reduced or cancelled as a result of extenuating circumstances or those that threaten the well-being of the patient prior to or after administration of anesthesia, see modifiers 73 and 74 (see modifiers approved for asc hospital outpatient use).
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.
55 Postoperative management only: when 1 physician or other qualified health care professional performed the postoperative management and another performed the surgical procedure, the postoperative component may be identified by adding modifier 55 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.
76 Repeat procedure or service by same physician or other qualified health care professional: it may be necessary to indicate that a procedure or service was repeated by the same physician or other qualified health care professional subsequent to the original procedure or service. this circumstance may be reported by adding modifier 76 to the repeated procedure or service. note: this modifier should not be appended to an e/m service.
77 Repeat procedure by another physician or other qualified health care professional: it may be necessary to indicate that a basic procedure or service was repeated by another physician or other qualified health care professional subsequent to the original procedure or service. this circumstance may be reported by adding modifier 77 to the repeated procedure or service. note: this modifier should not be appended to an e/m service.
GC This service has been performed in part by a resident under the direction of a teaching physician
GZ Item or service expected to be denied as not reasonable and necessary
XS Separate structure, a service that is distinct because it was performed on a separate organ/structure
XU Unusual non-overlapping service, the use of a service that is distinct because it does not overlap usual components of the main service
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2009-01-01 Changed Code description changed
Pre-1990 Added Code added.
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