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A mechanical vitrectomy with removal of the subretinal membrane is a surgical procedure performed to treat choroidal neovascularization (CNV) using a pars plana approach. The vitreous is a gel-like substance that occupies the central cavity of the eye, and its removal is a critical step in addressing CNV, which involves the abnormal growth of new blood vessels in the choroid layer beneath the retina. This condition often arises due to a disruption in Bruch's membrane, the structural layer that separates the choroidal vascular layer from the retina. When this membrane is compromised, it can lead to the leakage of fluid or blood from the newly formed vessels, resulting in distorted vision and potential scarring of the macula, which is essential for sharp central vision. CNV can be caused by various factors, but it is most frequently seen in patients suffering from proliferative diabetic vitreoretinopathy, where traction forces can lead to retinal detachment or giant retinal tears. Given that CNV is a significant contributor to visual impairment, the procedure aims to restore vision by removing the problematic membrane and addressing any associated complications. The surgical technique involves making three small incisions in the pars plana region of the eye, allowing for the insertion of specialized instruments to illuminate the interior of the eye, remove the vitreous gel, and access the subretinal space for membrane removal. This comprehensive approach may also include the application of an intraocular tamponade, such as air, gas, or silicone oil, to stabilize the retina and prevent further complications.
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The procedure is indicated for the treatment of choroidal neovascularization (CNV), which can lead to significant visual impairment. The following conditions may warrant a mechanical vitrectomy with removal of the subretinal membrane:
The procedure involves several critical steps to ensure effective treatment of CNV:
Post-procedure care involves monitoring the patient for any complications and ensuring proper recovery. Patients may experience some discomfort and will be advised on how to manage pain and follow up with their healthcare provider. Vision may take time to stabilize, and patients should be informed about the signs of potential complications, such as increased pain, changes in vision, or signs of infection. Follow-up appointments are essential to assess the healing process and the effectiveness of the procedure.
| Short Descr | VIT FOR MEMBRANE DISSECT | Medium Descr | VITRECTOMY PARS PLANA REMOVE SUBRETINAL MEMBRANE | Long Descr | Vitrectomy, mechanical, pars plana approach; with removal of subretinal membrane (eg, choroidal neovascularization), includes, if performed, intraocular tamponade (ie, air, gas or silicone oil) and laser photocoagulation | 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) | 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 | Non office-based surgical procedure added in CY 2008 or later; payment based on OPPS relative payment weight. | Type of Service (TOS) | 2 - Surgery | Berenson-Eggers TOS (BETOS) | P4C - Eye procedure - retinal detachment | MUE | 1 | CCS Clinical Classification | 20 - Other intraocular therapeutic 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) | 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. | 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). | 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 | GC | This service has been performed in part by a resident under the direction of a teaching physician | LT | Left side (used to identify procedures performed on the left side of the body) | SG | Ambulatory surgical center (asc) facility service |
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| 2008-01-01 | Added | First appearance in code book in 2008. |
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