Direct Answer
Ophthalmology billing is distinctive in that it blends medical and surgical billing with a significant optical/elective component. The highest-revenue procedures are cataract surgery (the most common surgical procedure in the United States) and intravitreal injections for retinal disease (among the highest-volume injection procedures in Medicare). Premium IOL billing, bundling rules in the global surgical period, and drug J-code accuracy for intravitreal agents (anti-VEGF drugs) are the areas that most commonly drive revenue errors in ophthalmology practices.
Table of Contents
Cataract Surgery Codes 66821-66984
Cataract surgery is the most commonly performed surgical procedure in the United States. CPT code selection depends on the surgical technique and whether complications occurred: Standard cataract surgery codes: 66984 — extracapsular cataract removal with insertion of intraocular lens prosthesis (1-stage procedure), manual or mechanical technique; this is the standard code for phacoemulsification cataract surgery with IOL implantation; 66982 — complex extracapsular cataract removal with IOL insertion; used for cases with increased risk of complications such as: mature or hypermature cataract; prior anterior segment surgery (prior corneal transplant, prior vitrectomy); pseudoexfoliation; subluxed or dislocated lens; iris or corneal abnormalities requiring additional procedures; documentation must specifically support the complexity — "complex" is not a matter of surgeon preference; 66821 — discission of secondary membranous cataract (opacified posterior capsule); posterior capsulotomy using YAG laser; this is a separate procedure from the original cataract surgery and is NOT in the global surgical period of cataract surgery; 66825 — repositioning of intraocular lens prosthesis; requires separate documentation of the indication; Intraocular lens: the standard IOL is included in the 66984/66982 payment — no separate billing for the basic lens; Premium IOLs (toric, multifocal, extended depth-of-focus): Medicare does not cover the additional cost of premium IOLs above the standard monofocal IOL; the physician bills 66983 or 66984 for the surgical procedure; the practice separately bills the patient directly (not Medicare) for the premium lens cost differential; this requires an Advanced Beneficiary Notice-type disclosure (though technically not an ABN since the service itself is covered — only the premium IOL cost differential is non-covered); the patient must sign a consent form acknowledging the additional out-of-pocket cost before surgery; Global surgical period for cataract surgery: the global period for cataract surgery (66984) is 90 days; services rendered within the global period that are related to the surgery are bundled into the surgical payment; exceptions: complications requiring return to the operating room; new conditions unrelated to the surgery; post-op visits at the transferring physician when a different physician provides post-op care; Bilateral cataract surgery: cataract surgery on the right and left eye on the same day: bill each eye separately with Modifier RT (right side) and LT (left side); the second eye receives 50% payment (bilateral surgery reduction); most commonly, the second eye is done at a separate surgical session, which avoids the bilateral reduction.
Intravitreal Injection and Anti-VEGF Drugs
Intravitreal injections for age-related macular degeneration (AMD), diabetic macular edema (DME), and retinal vein occlusion are among the highest-volume and highest-cost procedures in Medicare: Intravitreal injection CPT code: 67028 — intravitreal injection of a pharmacologic agent; the injection code is the same regardless of which drug is injected; what differs is the drug J-code; Anti-VEGF drug J-codes: J0178 — injection, aflibercept (Eylea), 1 mg (Regeneron); J2778 — injection, ranibizumab (Lucentis), 0.1 mg (Genentech/Roche); C9257 (HCPCS Level II) — injection, bevacizumab (Avastin, compounded) — used off-label but widely administered; billing: bill the number of mg administered; example: Eylea 2 mg injection = J0178 × 2 (2 units of J0178, where each unit = 1 mg); NDC documentation: the NDC of the specific vial administered must be included on the claim for Medicare drug claims; vial waste with Modifier JW: anti-VEGF drugs are often supplied in single-use vials containing more drug than is administered in a single injection; unused drug from a single-use vial that is discarded is billed with Modifier JW; example: Eylea is supplied in a 0.278 mL vial containing 2.78 mg (to allow withdrawal of 2 mg); the extra 0.78 mg discarded is billed as J0178 × 0.78 units with Modifier JW; Intravitreal steroid injections: triamcinolone acetonide: J3301 — injection, triamcinolone acetonide, per 10 mg; dexamethasone intravitreal implant (Ozurdex): J0890 — injection, dexamethasone, intravitreal, 0.1 mg; fluocinolone acetonide implant (Iluvien, Yutiq): J7313 — injection, fluocinolone acetonide, intravitreal, 0.01 mg; Prior authorization for anti-VEGF: commercial payers frequently require PA for anti-VEGF injections; the PA process often requires documentation of: diagnosis and disease stage (AMDVISION, ETDRS visual acuity); prior treatment history; OCT findings documenting subretinal or intraretinal fluid; step therapy requirements vary by payer (some require trial of bevacizumab before approving brand anti-VEGF); Bilateral same-day injections: when both eyes are injected on the same day: report 67028 for one eye and 67028-50 (Modifier 50, bilateral) or 67028-LT and 67028-RT; the second eye receives 50% payment from Medicare; drug codes are reported for the actual total drug administered to both eyes; drug wastage from single-use vials must be calculated per vial, not per total dose.
Glaucoma Procedures
Glaucoma treatment ranges from medical management to laser procedures to incisional surgery: Laser glaucoma procedures: 65855 — trabeculoplasty by laser surgery; SLT (selective laser trabeculoplasty) and ALT (argon laser trabeculoplasty); global period: 10 days; 65860 — laser iridotomy/iridectomy; 65870 — laser goniotomy; 65875 — laser synechialysis; surgical glaucoma procedures: 66170 — fistulizing surgery (trabeculectomy) without prior surgery; 66172 — trabeculectomy with scarring from prior ocular surgery or trauma; 66174 — transluminal dilation of aqueous outflow canal (canaloplasty/iStent); 66175 — transluminal dilation with retention of device; MIGS (Minimally Invasive Glaucoma Surgery): iStent: 66183 — insertion of anterior segment aqueous drainage device, without extraocular reservoir; when performed at the time of cataract surgery: bill 66984 + 66183; when performed as a standalone procedure: bill 66183 only; XEN Gel Stent: 66183 or 66184 depending on bleb formation; Cyclophotocoagulation (CPC): 66710 — ciliary body destruction, cyclophotocoagulation, transsclerally; 66711 — endoscopic cyclophotocoagulation; Glaucoma drainage devices (tubes): 66179 — aqueous shunt to extraocular equatorial plate reservoir, external approach; Baerveldt, Ahmed implants; 66180 — with 1 or more additional sutures or patches; 66183 — without extraocular reservoir (Xen Gel Stent); Glaucoma diagnostic procedures: 92020 — gonioscopy; 92082 — visual field, intermediate examination; 92083 — visual field, extended examination (most commonly used for glaucoma monitoring); 92132 — scanning computerized ophthalmic diagnostic imaging, anterior segment, with interpretation and report; 92133 — posterior segment, optic nerve; OCT for glaucoma: 92133 (optic nerve) and 92134 (retina) — separately reportable when both are performed at the same visit for different indications.
Ophthalmic Diagnostic Testing
Ophthalmology practices perform substantial diagnostic testing — imaging, measurements, and functional tests: Optical Coherence Tomography (OCT): 92134 — scanning computerized ophthalmic diagnostic imaging, posterior segment, with interpretation and report, unilateral or bilateral; the code is the same whether one or both eyes are imaged; 92133 — anterior segment OCT (used for glaucoma/corneal conditions); OCT must include an interpretation and report by the physician — imaging alone without a written interpretation is not billable; Fundus photography: 92250 — fundus photography with interpretation and report; includes anterior and posterior segment photographs; must include written interpretation; Fluorescein angiography: 92235 — fluorescein angiography with interpretation and report; ICG (indocyanine green) angiography: 92240 — ICG angiography with interpretation and report; both 92235 and 92240 separately reportable when both performed at same encounter for different clinical indications; Corneal topography: 92025 — computerized corneal topography, with interpretation and report, unilateral or bilateral; Extended ophthalmoscopy: 92201 — extended ophthalmoscopy with retinal drawing and report; unilateral; 92202 — bilateral; Visual acuity and refraction: 92002/92004 — ophthalmological services, medical examination with refraction, new patient; 92012/92014 — established patient; refraction 92015 — vision services, determination of refractive state; refraction is specifically excluded from Medicare coverage — it is a non-covered service; bill the patient directly for refraction; include refraction in a separate line so the E&M is not affected; Biometry for IOL calculation: 92136 — ophthalmic biometry by partial coherence interferometry with intraocular lens power calculation; IOLMaster and similar devices; required pre-operatively for cataract surgery; bundled into the cataract surgery global when performed in the pre-op period.
Ophthalmology Denials and RCM
Ophthalmology practices face specific denial patterns driven by their unique service mix: Common ophthalmology denial patterns: intravitreal injection drug coding errors: billing the wrong J-code for the drug administered; failing to bill for drug wastage with Modifier JW; not including the NDC on the claim; anti-VEGF prior authorization: missing PA for commercial plan anti-VEGF injections; providing the PA for one drug and then administering a different drug; cataract surgery complexity documentation: billing 66982 (complex cataract) without documentation that specifically supports the complexity criteria; "complex" language in the note without identifying which specific complexity factor applies; global surgical period violations: billing an E&M or minor procedure during the 90-day global period without the appropriate global period modifier; post-op visits that should be included in the global are separately billed in error; premium IOL billing: incorrectly billing Medicare for the premium IOL cost differential (which is patient responsibility) rather than collecting from the patient; retinal diagnostic imaging — refraction inclusion: including refraction charges within an E&M visit code when refraction should be billed separately as a non-covered service; ophthalmology RCM best practices: establish a pre-authorization workflow specifically for anti-VEGF injections — track by drug, patient, payer, authorization expiration, and units authorized; drug room reconciliation: the drugs dispensed from inventory must match what is billed — anti-VEGF inventory and billing reconciliation should be performed at least monthly; global period tracking: all cataract surgery patients should be flagged in the system with the global period end date; E&M visits during the global period must use Modifier 24 (unrelated E&M during postoperative period) or be included in the global; MIGS tracking: for iStent and other MIGS procedures performed at time of cataract, ensure the combination code pair (66984 + 66183) is correctly submitted.
FAQ
What is the correct billing approach when a patient receives an intravitreal injection with drug wastage from a single-use vial?
Drug wastage billing for intravitreal anti-VEGF injections is one of the most common ophthalmology billing errors. Here is the correct approach: Example scenario: patient receives 2 mg aflibercept (Eylea). The commercially available single-dose vial of Eylea contains 2.78 mg (to allow withdrawal of a 2 mg dose). After withdrawing and injecting the 2 mg dose, 0.78 mg remains in the vial and is discarded. Correct billing: Procedure code: 67028 — intravitreal injection (1 unit); Drug administered: J0178 × 2 (aflibercept, 2 units of J0178, each unit = 1 mg); Drug wasted: J0178 × 0.78 with Modifier JW (aflibercept, 0.78 units discarded); NDC: the 11-digit NDC of the specific Eylea vial must appear on both the J0178 administered line and the J0178-JW waste line; Why this matters for payment: Medicare reimburses both the administered and the wasted portion from a single-use vial when Modifier JW is used correctly; if the waste is not billed, the practice loses the reimbursement for the wasted drug; the ASP (Average Sales Price) + 6% reimbursement for anti-VEGF drugs represents significant revenue that should not be left on the table; Payer policy variations: commercial payers vary in their waste billing policies — some do not allow Modifier JW and do not reimburse waste; some require a statement documenting that the drug was from a single-use vial that was opened exclusively for this patient; verify each major commercial payer's waste billing policy before routinely billing JW; Documentation requirements: the medical record must document: the drug, dose, and route administered; the NDC of the vial; that the vial was single-use and the remaining drug was discarded (not stored for a future patient); JW billing without this documentation is an audit risk.
How does premium IOL billing work when a Medicare patient wants a toric or multifocal lens?
Premium IOL billing involves a split between Medicare-covered and non-covered services that must be handled with specific documentation and patient financial disclosure: What Medicare covers: the cataract surgery procedure (66984) — covered at standard Medicare rates; the basic monofocal IOL — included in the cataract surgery payment; standard preoperative biometry (92136) — covered; standard pre-op and post-op visits — covered within the global period; What Medicare does not cover: the cost differential between the standard IOL and the premium IOL (toric, multifocal, extended depth-of-focus); additional preoperative testing that is only required because the patient chose a premium IOL (e.g., wavefront analysis 92235 for premium IOL selection, additional corneal topography beyond what is medically necessary for cataract planning); the additional physician time for premium IOL counseling, measurement review, and lens selection calculations beyond what the standard cataract surgery workup requires; How to bill the non-covered portion: the practice establishes a direct patient charge for the premium IOL cost differential; this charge is NOT submitted to Medicare and NOT on the Medicare claim; the patient must sign a disclosure document (similar to an ABN in structure) before surgery that: describes the premium IOL option and its benefits; discloses that the additional cost is not covered by Medicare; states the specific dollar amount the patient will pay out-of-pocket; The practice must be careful NOT to: bill Medicare for the premium IOL cost differential (would be a False Claims Act violation); inflate the 66984 code charge to capture the premium lens cost (the procedure code covers the procedure regardless of lens type); use a different procedure code (66983 — complex) to try to capture additional revenue unless documentation genuinely supports the complexity criteria; Toric IOL for patients with astigmatism: if the patient has clinically significant astigmatism that makes the toric lens medically necessary (not merely elective), some payers may cover the toric lens at a higher rate; this is a nuanced coverage question that varies by payer; for Medicare, the standard policy does not cover premium IOLs as medically necessary — they are considered an upgrade; state Medicaid policies vary.
Ophthalmology Revenue Cycle Management From Cataract to Retina
Valiant Lifecare's ophthalmology billing specialists understand cataract surgery global period management, premium IOL patient billing, anti-VEGF drug J-code accuracy and JW waste billing, glaucoma procedure coding including MIGS, ophthalmic diagnostic imaging, and the prior authorization workflows that protect ophthalmology practice revenue.
Optimize Your Ophthalmology Revenue Cycle