What Are the 2027 Medicare Changes for Ophthalmology?
As of July 2026, the CMS CY 2027 Physician Fee Schedule proposed rule introduces payment reductions that directly target ophthalmology. The proposed changes include a combined 3 percent decrease in total allowed charges for the specialty, a 4 percent cut to cataract surgery reimbursement with CPT 66984 dropping to a proposed $444.34, and a 50 percent payment reduction when a same-day E/M visit is billed alongside a procedure by the same physician. The conversion factor decreases by 1 to 1.7 percent as the temporary 2026 payment increase expires. ASCRS has published a detailed impact analysis, and the comment deadline is September 14, 2026.
Cataract surgery revenue hit: The proposed 2027 Medicare payment for CPT 66984 is $444.34, representing a 4 percent reduction from 2026 rates, according to the ASCRS analysis.
Same-day billing penalized: If finalized, the highest-paid service on a given day would be reimbursed in full while every additional service, including E/M visits, would be paid at 50 percent.
Comment window closing: The proposed rule is accepting public comments through September 14, 2026, and the final rule is expected later this fall.
What CMS Proposed for Ophthalmology
On July 14, 2026, CMS released the CY 2027 Medicare Physician Fee Schedule proposed rule, designated CMS-1848-P. The rule proposes payment policy changes for Medicare Part B services effective January 1, 2027. For ophthalmology practices, the proposed rule contains three distinct financial impacts that compound on top of each other.
First, the conversion factor is decreasing. The proposed 2027 conversion factor is $33.17 for qualifying APM participants and $32.84 for non-qualifying providers, representing cuts of 1 percent and 1.7 percent compared to 2026. The decrease results primarily from the expiration of the temporary 2.5 percent payment increase Congress enacted for 2026 under the Working Families Tax Cut legislation.
Second, ophthalmology is taking a specialty-level hit. According to the ASCRS analysis of the proposed rule, the estimated CY 2027 combined impact on total allowed charges for ophthalmology from all proposed changes is negative 3 percent. The proposed Medicare payment for cataract surgery with IOL insertion (CPT 66984), the single most frequently performed ophthalmic surgical procedure, drops to $444.34, a 4 percent reduction from 2026.
Third, CMS is proposing a structural change to same-day billing. When a physician bills a separately identifiable E/M visit on the same day as a procedure with a global period, the highest-paid service would be paid at 100 percent and every additional service would be paid at only 50 percent. For ophthalmologists who routinely perform a pre-operative or post-operative evaluation on the same day as a procedure, this directly reduces reimbursement on a significant share of Medicare claims.
The comment period closes September 14, 2026.
Who Do These Payment Cuts Apply To?
The proposed changes affect every ophthalmology practice and billing entity that submits Medicare claims for surgical or procedural services with same-day E/M visits. The scope includes solo ophthalmologists and independent eye surgery practices, multi-physician ophthalmology groups, retina specialists billing intravitreal injections, cataract and refractive surgeons operating in ASCs and HOPDs, glaucoma specialists performing laser and surgical procedures, and any billing company or revenue cycle management partner handling ophthalmic claims.
The 3 percent specialty-level cut applies across the board. The 4 percent cataract surgery hit is specific to CPT 66984 and related procedure codes. The same-day E/M reduction applies whenever a modifier 25 visit is billed on the same day as any procedure with a global period, regardless of setting. In our experience matching providers with billing partners, the practices most at risk are high-volume cataract practices that routinely bill a same-day comprehensive exam before surgery. If you are evaluating your current ophthalmology medical billing and coding workflows, the proposed same-day rule should be at the top of your review list.
Medicaid and commercial payers frequently benchmark their rates against the Medicare PFS, so the downstream effect on private payer contracts is likely, though the timing will vary by payer and region.
Why CMS Is Cutting Same-Day Billing
CMS has framed the same-day E/M payment reduction as an effort to eliminate what it considers duplicative payments. The agency’s position is that when a physician performs both an E/M visit and a procedure on the same day, some of the physician work captured in the visit is already reflected in the procedure’s relative value units. CMS proposed a nearly identical policy in the CY 2019 PFS proposed rule but withdrew it after significant pushback from specialty societies.
The 2027 version revives and broadens that concept. Under the proposal, the most expensive service performed on a given day would be paid in full. All other services, whether additional procedures or E/M visits, would be reimbursed at 50 percent of their scheduled rate. For ophthalmology, this hits harder than most specialties because same-day E/M billing is standard workflow. A patient arrives for a pre-operative evaluation, proceeds to cataract surgery, and both the exam (92014 or 92004) and the surgical code (66984) are billed on the same date of service.
One question we hear constantly from practice managers is whether there is any workaround. Under the current proposal, there is not. The 50 percent reduction applies to the lower-valued service regardless of documentation quality or modifier usage. The only variable is whether CMS finalizes the rule or modifies it based on comments received before September 14, 2026.
How Much Could Your Ophthalmology Practice Lose?
The revenue impact depends on your practice’s surgical volume, same-day E/M billing frequency, and payer mix. Here is a simplified comparison of key ophthalmology payment components under the proposed 2027 rule, based on the ASCRS analysis:
| Payment Component | 2026 (Current) | 2027 (Proposed) |
|---|---|---|
| Conversion factor (non-APM) | $33.40 | $32.84 (1.7% decrease) |
| Cataract surgery 66984 | 2026 rate | $444.34 (4% decrease) |
| Total ophthalmology impact | Baseline | -3% combined (ASCRS estimate) |
| Same-day E/M with procedure | Paid at 100% with modifier 25 | Lower-valued service at 50% |
For a cataract-focused practice performing 25 cases per week with a same-day comprehensive exam on most of those encounters, the combination of the 4 percent surgical code reduction and the 50 percent same-day E/M cut translates to meaningful annual revenue lost. Diagnostic imaging codes like CPT 92134 for retinal OCT are also affected when billed on the same day as a procedure. Retina practices billing intravitreal injections (67028) with a same-day E/M visit face the same 50 percent reduction on the lower-valued service.
What to Do Before September 14
The September 14, 2026 comment deadline is the most immediate action date. Regardless of the final rule outcome, the billing review you do now protects your practice in either scenario. Here is the preparation checklist:
- Quantify your same-day E/M and procedure volume. Pull a report of every claim from the past 12 months where your practice billed an E/M visit with modifier 25 on the same day as a cataract surgery, retinal procedure, glaucoma laser, or any other procedure with a global period. This is your exposure number.
- Model the revenue impact at 50 percent. Apply a 50 percent reduction to the lower-valued service on every same-day claim. The resulting figure is your maximum annual Medicare revenue at risk under this proposal.
- Review modifier 25 documentation compliance. CMS is clearly signaling that same-day E/M billing is under scrutiny. Ensure every same-day visit meets the separately identifiable standard and that your documentation supports a distinct E/M service.
- Assess your cataract surgery reimbursement. Compare your current 66984 reimbursement against the proposed $444.34. If you operate in an ASC, check the proposed OPPS/ASC rule as well, since facility fees face a separate reduction.
- Contact your top payers. Confirm whether any commercial or Medicaid payers have indicated they will mirror the proposed Medicare policy.
- Submit a public comment. The comment period closes September 14, 2026. ASCRS and AAO are organizing advocacy responses.
- Evaluate your billing partner’s readiness. If you outsource billing, confirm that your billing company can model the revenue impact, adjust workflows, and manage the new same-day payment rules if finalized.
Billing Mistakes This Change Will Expose
Across the billing companies we vet, a recurring pattern in ophthalmology practices is that same-day E/M visits are billed as routine rather than verified against the separately identifiable standard. Under the current system, an underdocumented same-day visit with modifier 25 still gets paid at full rate if it clears the claim edit. Under the proposed system, it gets paid at 50 percent regardless, and if it also triggers an audit, the practice faces both reduced payment and potential recoupment.
The most common issue we see providers run into is billing a comprehensive exam (92014) on the same day as cataract surgery (66984) without ensuring the exam documentation clearly supports a service that is separate and distinct from the pre-operative assessment already included in the surgical global package. When the same-day E/M reduction layers on top of this documentation gap, the revenue leak compounds.
Practices that bill diagnostic imaging such as retinal OCT or visual field testing on the same day as a procedure should also review whether those codes are subject to the new same-day bundling rules. Understanding the correct billing and reimbursement guidelines for OCT imaging is critical before these changes take effect. The proposed rule creates new financial pressure on every same-day billing scenario that ophthalmology practices have treated as standard workflow for years.
In-House vs. an Ophthalmology Billing Partner
Providers often come to us after a reimbursement change has already reduced their revenue, not before. The 2027 proposed rule gives ophthalmology practices an opportunity to evaluate their billing operations while there is still time to prepare. If you are considering your options, our guide on how to find the right ophthalmology medical billing service covers the key factors to weigh.
A billing company with direct ophthalmology experience already understands the same-day E/M and surgical billing workflow, manages modifier 25 documentation compliance across multiple payers, handles the complex bundling rules around diagnostic imaging and procedures, and navigates the cataract surgery global package correctly. These are the exact areas where the proposed 2027 changes will create the most financial exposure.
If your current billing setup cannot model the revenue impact of the proposed same-day rule, cannot tell you how many of your claims would be affected, or cannot distinguish between a separately identifiable E/M visit and a service already included in the surgical global package, those are signals that your billing operation is not positioned for what 2027 may bring. Ophthalmology Bill Co connects practices with billing companies that specialize in exactly these scenarios, not generalists who will discover the new rules when your claims start getting reduced.
The proposed 2027 changes target the exact billing workflows that define ophthalmology: same-day E/M with cataract surgery, diagnostic imaging bundled with procedures, and modifier 25 compliance. If your billing team cannot quantify the impact before the final rule, now is the time to connect with an ophthalmology billing company that can.
Frequently Asked Questions
The proposed changes are part of the CY 2027 Medicare Physician Fee Schedule proposed rule and would take effect January 1, 2027, if finalized. CMS is accepting public comments through September 14, 2026, and the final rule is expected later this fall. Specific provisions could be modified or removed in the final version.
According to the ASCRS analysis of the proposed rule, the Medicare payment for cataract surgery with IOL insertion (CPT 66984) would drop to $444.34, representing a 4 percent reduction from 2026 rates. The overall combined impact on ophthalmology total allowed charges is estimated at negative 3 percent.
Yes. The proposed 50 percent reduction applies whenever a separately identifiable E/M visit is billed on the same day as a procedure with a 0-, 10-, or 90-day global period, regardless of place of service. This includes cataract surgery, retinal procedures, glaucoma lasers, and any other ophthalmic procedure with a global period.
The proposed rule targets E/M visits billed alongside procedures, not diagnostic tests billed alongside E/M visits. However, if an OCT (92134) and an E/M visit and a procedure are all billed on the same day, the bundling and payment hierarchy becomes more complex. Practices should review their same-day billing combinations carefully.
CMS proposed a similar same-day E/M payment reduction in the CY 2019 PFS proposed rule but did not finalize it after significant pushback from provider organizations including ASCRS and AAO. The 2027 proposal revives the concept. The comment period closes September 14, 2026.
It depends on the payer. Many commercial and Medicaid payers benchmark their payment policies to the Medicare PFS, but the timing and extent vary. Some adopt Medicare changes directly while others maintain separate same-day billing policies. Ophthalmology practices should confirm with their top payers whether they plan to mirror this proposal.
Next Steps
Review the ASCRS analysis of the proposed 2027 PFS payment changes for ophthalmology at ascrs.org before the September 14 comment deadline.
Pull your same-day E/M and procedure billing volume for the past 12 months and model the revenue impact of a 50 percent reduction on the lower-valued service.
If your billing team cannot quantify the impact or adjust documentation and coding workflows in time, we can connect you with an ophthalmology billing company in as little as two hours.
The proposed 2027 Medicare changes represent one of the largest targeted payment reductions for ophthalmology in recent memory. Whether you need a billing partner who already understands ophthalmic coding and modifier rules or want to compare your current company’s readiness, Ophthalmology Bill Co matches you with vetted ophthalmology billing experts at no cost.
