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Official Description

Exchange of intraocular lens

© Copyright 2025 American Medical Association. All rights reserved.

Common Language Description

The procedure described by CPT® Code 66986 refers to the exchange of an intraocular lens (IOL), which is a surgical intervention typically performed to address refractive errors that may arise after cataract surgery. An intraocular lens is a synthetic lens implanted in the eye to replace the natural lens that has been removed during cataract surgery. In some cases, the initially placed IOL may not provide the desired visual acuity or may lead to complications, necessitating its exchange. The procedure involves several critical steps to ensure the safe and effective removal of the existing lens and the placement of a new one. The surgical approach includes creating an incision in the cornea to facilitate access to the anterior chamber of the eye, where the IOL is located. The use of viscoelastic substances is essential during this procedure, as they help maintain the shape of the anterior chamber and protect the eye's internal structures. The meticulous dissection of the anterior capsule from the IOL is performed to ensure that the lens can be safely removed without damaging surrounding tissues. Ultimately, this procedure aims to restore optimal vision by replacing the IOL with one that better meets the patient's refractive needs.

© Copyright 2025 Coding Ahead. All rights reserved.

1. Indications

The exchange of an intraocular lens (IOL) is indicated in specific clinical scenarios where the previously implanted lens does not meet the patient's visual requirements or has resulted in complications. The following conditions may warrant this procedure:

  • Refractive Errors The primary indication for IOL exchange is the correction of refractive errors that persist after cataract surgery, such as myopia, hyperopia, or astigmatism.
  • Dislocation of IOL If the IOL has become dislocated or malpositioned within the eye, an exchange may be necessary to restore proper alignment and function.
  • Optical Aberrations Patients experiencing significant optical aberrations or visual disturbances due to the current IOL may require an exchange to improve visual quality.
  • Complications Any complications arising from the initial IOL placement, such as opacification of the capsule or other adverse effects, may necessitate the exchange of the lens.

2. Procedure

The procedure for exchanging an intraocular lens involves several detailed steps to ensure the safe removal of the existing lens and the insertion of a new one. The following outlines the procedural steps:

  • Step 1: Incision and Access The surgeon begins by making an incision in the cornea to create a paracentesis, which allows access to the anterior chamber of the eye. This initial step is crucial for facilitating the subsequent maneuvers required for lens exchange.
  • Step 2: Inflation of Anterior Chamber Once access is established, the anterior chamber is inflated with viscoelastic material. This substance helps maintain the chamber's shape and provides a protective barrier for the intraocular structures during the procedure.
  • Step 3: Capsulorrhexis and Dissection A capsulorrhexis needle is then advanced to create a controlled opening in the anterior capsule. Dispersive viscoelastic is injected to separate the anterior capsule from the IOL, allowing for easier manipulation of the lens.
  • Step 4: Blunt Dissection A blunt spatula is utilized to carefully dissect the anterior capsule from the IOL. This step is critical to ensure that the lens can be removed without damaging the surrounding tissues.
  • Step 5: Further Dissection Additional viscoelastic is injected beneath the IOL to facilitate its dissection from the posterior capsule. The IOL is then gently lifted, with more dispersive viscoelastic being injected as needed to aid in the separation process.
  • Step 6: Complete Dissection A second paracentesis may be performed to allow access around the entire circumference of the IOL, ensuring complete dissection and facilitating its removal.
  • Step 7: Removal of the IOL The IOL is then dialed out of the capsule and into the anterior chamber. At this point, the lens can either be folded and removed or cut into pieces with scissors for easier extraction.
  • Step 8: Insertion of New IOL The new exchange IOL may be inserted using a lens injector either behind the existing IOL before its removal or after the first IOL has been completely removed, depending on the surgeon's preference and the specific clinical scenario.
  • Step 9: Closure After the new IOL is in place, the viscoelastic material is carefully removed from the eye. The corneal incision(s) are then closed using sutures or through stromal hydration techniques to ensure proper healing.

3. Post-Procedure

Post-procedure care following the exchange of an intraocular lens is essential for optimal recovery and visual outcomes. Patients are typically monitored for any immediate complications, and follow-up appointments are scheduled to assess healing and visual acuity. It is common for patients to experience some degree of discomfort or blurred vision initially, which should gradually improve as the eye heals. Patients may be prescribed anti-inflammatory or antibiotic eye drops to prevent infection and reduce inflammation. Additionally, instructions regarding activity restrictions, such as avoiding heavy lifting or swimming, may be provided to ensure proper recovery. Regular follow-up visits will help the healthcare provider evaluate the success of the lens exchange and make any necessary adjustments to the patient's treatment plan.

Short Descr EXCHANGE LENS PROSTHESIS
Medium Descr EXCHANGE INTRAOCULAR LENS
Long Descr Exchange of intraocular lens
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) 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

This is a primary code that can be used with these additional add-on codes.

66990 Addon Code MPFS Status: Active Code APC N ASC N1 CPT Assistant Article Use of ophthalmic endoscope (List separately in addition to code for primary procedure)
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).
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.)
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.)
SG Ambulatory surgical center (asc) facility service
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.
GC This service has been performed in part by a resident under the direction of a teaching physician
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.
80 Assistant surgeon: surgical assistant services may be identified by adding modifier 80 to the usual procedure number(s).
22 Increased procedural services: when the work required to provide a service is substantially greater than typically required, it may be identified by adding modifier 22 to the usual procedure code. documentation must support the substantial additional work and the reason for the additional work (ie, increased intensity, time, technical difficulty of procedure, severity of patient's condition, physical and mental effort required). note: this modifier should not be appended to an e/m 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).
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).
53 Discontinued procedure: under certain circumstances, the physician or other qualified health care professional may elect to terminate a surgical or diagnostic procedure. due to extenuating circumstances or those that threaten the well being of the patient, it may be necessary to indicate that a surgical or diagnostic procedure was started but discontinued. this circumstance may be reported by adding modifier 53 to the code reported by the individual for the discontinued procedure. note: this modifier is not used to report the elective cancellation of a procedure prior to the patient's anesthesia induction and/or surgical preparation in the operating suite. for outpatient hospital/ambulatory surgery center (asc) 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).
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.
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.
73 Discontinued out-patient hospital/ambulatory surgery center (asc) procedure prior to the administration of anesthesia: due to extenuating circumstances or those that threaten the well being of the patient, the physician may cancel a surgical or diagnostic procedure subsequent to the patient's surgical preparation (including sedation when provided, and being taken to the room where the procedure is to be performed), but prior to the administration of anesthesia (local, regional block(s) or general). under these circumstances, the intended service that is prepared for but cancelled can be reported by its usual procedure number and the addition of modifier 73. note: the elective cancellation of a service prior to the administration of anesthesia and/or surgical preparation of the patient should not be reported. for physician reporting of a discontinued procedure, see modifier 53.
74 Discontinued out-patient hospital/ambulatory surgery center (asc) procedure after administration of anesthesia: due to extenuating circumstances or those that threaten the well being of the patient, the physician may terminate a surgical or diagnostic procedure after the administration of anesthesia (local, regional block(s), general) or after the procedure was started (incision made, intubation started, scope inserted, etc). under these circumstances, the procedure started but terminated can be reported by its usual procedure number and the addition of modifier 74. note: the elective cancellation of a service prior to the administration of anesthesia and/or surgical preparation of the patient should not be reported. for physician reporting of a discontinued procedure, see modifier 53.
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.
81 Minimum assistant surgeon: minimum surgical assistant services are identified by adding modifier 81 to the usual procedure number.
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).
AG Primary physician
AQ Physician providing a service in an unlisted health professional shortage area (hpsa)
CC Procedure code change (use 'cc' when the procedure code submitted was changed either for administrative reasons or because an incorrect code was filed)
CR Catastrophe/disaster related
GA Waiver of liability statement issued as required by payer policy, individual case
GW Service not related to the hospice patient's terminal condition
GY Item or service statutorily excluded, does not meet the definition of any medicare benefit or, for non-medicare insurers, is not a contract benefit
PT Colorectal cancer screening test; converted to diagnostic test or other procedure
T1 Left foot, second digit
U8 Medicaid level of care 8, as defined by each state
X4 Episodic/focused services: for reporting services by clinicians who provide focused care on particular types of treatment limited to a defined period and circumstance; the patient has a problem, acute or chronic, that will be treated with surgery, radiation, or some other type of generally time-limited intervention; reporting clinician service examples include but are not limited to, the orthopedic surgeon performing a knee replacement and seeing the patient through the postoperative period
XP Separate practitioner, a service that is distinct because it was performed by a different practitioner
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
Date
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Notes
1992-01-01 Added First appearance in code book in 1992.
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