Can You Profit From Glaucoma Surgery?

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There's no better way to end a day of cataracts than by adding a few glaucoma cases to the schedule.


On its own, glaucoma is neither a profitable nor a popular enough surgery to make you want to add it your caseload. But when you consider how nicely a few glaucoma cases fit onto the end of a cataract schedule, glaucoma suddenly becomes desirable. Your surgeons will thank you, too. Hosting glaucoma procedures is convenient for surgeons who are already filling your ORs with high-volume cataract cases. And did we mention that Medicare ASC reimbursements are up in 2011 for 3 commonly performed procedures? Let's look at glaucoma's standard surgical treatment options and what it takes to make them work financially at your facility.

  • Laser trabeculoplasty (CPT code 65855). We purchased our laser several years ago for around $65,000. That might seem like a lot to pay for a relatively low-volume procedure, but we broke even 2 years after the purchase by hosting 10 to 20 cases a month.

Reviewing Your Surgical Treatment Options

  • Laser trabeculoplasty. We host about 10 selective laser trabeculoplasty (SLT) cases per month. SLT lowers eye pressure by using laser light to stimulate the body's own healing response. Unlike argon laser trabeculoplasty (ALT) — your other laser option — SLT uses a cold laser to limit damage to the tissue surrounding the trabecular meshwork and reduce complication risks. The procedure is performed in about 5 minutes in a non-sterile procedure room. Patients are prepped with anesthetic eye drops in a matter of minutes, are administered a few eye drops afterward and leave the facility less than 30 minutes after they walked in.
  • Trabeculectomy. Despite the ease and overall clinical success of laser trabeculoplasty, trabeculectomy is considered the gold standard for treating glaucoma in patients when medications and lasers are ineffective in treating the condition. During this procedure, excess aqueous fluid is filtered away from the inside of the eye through a sclerotomy that is then covered by a partial thickness scleral flap. The aqueous fluid forms a bubble under the conjunctiva before being absorbed into the bloodstream.

The procedure is slightly more complex and longer in duration than a typical cataract case. While a skilled surgeon will have little difficulty adapting to the slightly more complex movements in and around the eye, your perioperative team will have to increase its perioperative management of glaucoma patients. The patients are prepped with peribulbar or retrobulbar anesthesia and given antibiotic, anti-inflammatory and pilocarpine eye drops. Most open-angle glaucoma patients typically present in no discomfort at all. It is the patients who arrive with acute angle-closure glaucoma that might be in pain and suffering from nausea and vomiting before the procedure. Your staff must also be aware of and work to manage potential perioperative complications that include bleeding around the sclera flap, bleb leaks and post-op infections, including endophthalmitis.

  • Trabeculectomy with glaucoma drainage implants. Adding glaucoma drainage implants to the mix ramps up the difficulty of filtration surgery with an unproven upside, according to some physicians. The insertion of silicone devices — called Baerveldt, Molteno or Ahmed implants — into the anterior chamber of the eye increases aqueous fluid drainage and lowers intraocular pressure while limiting complication risks. Some physicians swear by the efficacy of implants and believe they should be considered above medical management as the primary treatment of glaucoma. Others point to the complex surgical techniques required to place the devices and the need for a highly skilled surgical assistant, who would increase staffing costs, as detriments to the widespread use of the implants.

— Donna White, RN, MSN, MHA

It was added to the list of Medicare-approved ASC procedures in 2008 at a reimbursement of $132, so you'll receive approximately $150 (actual Medicare reimbursement rates depend on your local wage-index-adjusted rates) in 2011, now that the revised ASC payment plan has been fully implemented. From commercial payors, we've negotiated payments as high as $500. Supply costs are negligible and only 1 staff nurse is required to assist the surgeon.

  • Trabeculectomy (CPT code 66170). Medi-care's reimbursement for this procedure is set for approximately $945 in 2011. With per-case supply expenses at about $250, the profit potential is strong. We've negotiated reimbursements as high as $1,225 from commercial payors.
  • Trabeculectomy with glaucoma drainage implants (CPT code 66180). Medicare is scheduled to pay $1,675 for an aqueous shunt procedure in 2011. Remember that the revised ASC payment plan no longer reimburses for devices, so once you factor in the cost of the implant (around $500 to $800), standard supplies that total close to $250 and a patch graft that runs $275, the profit from Medicare cases is negligible. Still, that's a more promising picture than the $950 we received for these cases just last year.

Hosting patients with commercial insurance provides more financial flexibility. Reimbursement varies across payors, and the cost of the shunt procedure can vary depending on the implant used. Some payors let you bill for the procedure and the device separately; others only let you bill the procedure as a whole. If you're negotiating with a payor that bundles costs into a single reimbursement, be sure the rate and language of the contract lets you bill enough to cover the cost of the shunt. An Ahmed valve, for example, costs $495. When these implants are involved in a case, be sure your surgeons generate accurate operative reports and your billing department knows to properly code for the additional expense.

We've been able to negotiate upwards of $2,100 for the shunt procedure (implant reimbursement included) from third-party payors, which grows the per-case profit margin. Carving out the implant costs while negotiating with third-party payors further ensures you're maximizing the procedure's profit potential. Billing for CPT code L8612, which identifies the use of a device, nets my facility $500 to $1,500 more to help cover the cost of the drainage implants.

Glaucoma's profit potential
You might realize some additional revenue from glaucoma procedures, but first focus on covering your expenses, especially the cost of aqueous shunt implants, should your surgeons choose to use them. Below is a breakdown of the reimbursements, time patients will spend in your center, supply costs and staffing needs for 3 common glaucoma procedures.

Taking the plunge
If you're already hosting cataract cases, you likely have most of the necessary equipment and instrumentation to add glaucoma. Additional purchases might include sutures that help create a watertight sclera flap, a scleral punch, pericardium patch grafts, instrumentation for performing an iridectomy and scissors designed to cut the eye's conjunctiva. The biggest adjustment you'll have to make is related to managing the lengthier, more complex procedures. Your clinical team has its cataract surgery routines down cold in order to keep a day's schedule humming around cases lasting 15 minutes or less. Glaucoma cases can last 2 to 3 times longer, meaning you should stack them at the end of a day's schedule so they don't disrupt the efficiency of your bread-and-butter cataract caseload.

The Economics of Glaucoma Surgery

Procedure

CPT Code

Reimbursement Range Time (Door to Door)

Supply Costs

Staffing Needs

SLT

65855

$150 to $500

30 minutes or less

Negligible

1 nurse

Trabeculectomy

66170

$945 to $1,225

90 to 120 minutes

$250

2 nurses, 1 surgical tech

Surgical trab with aqueous shunt

66180

$1,675 to $2,100

90 to 120 minutes

$250 plus cost of implant

2 nurses, 1 surgical tech

Glaucoma implant carveout

L8612

$500 to $1,500

$500 to $800

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