Specialty billing
Ophthalmology Medical Billing Services
Ophthalmology billing has a structural quirk no other specialty shares: patients often carry both medical and vision insurance, and determining which is responsible depends on the reason for the visit. Routing a claim to the wrong carrier is the most common avoidable denial in the specialty.
Ophthalmology benchmarks
- Typical denial rate
- 10–16%
- Days in AR
- 33–46
- Achievable clean claim rate
- 97%+
Typical ranges for ophthalmology practices. Your actual numbers are measured during the audit.
The complexity
Why ophthalmology is uniquely difficult to bill
Patients carry both medical and vision plans with different covered services
Eye codes and standard E/M codes are alternative pathways with different requirements
Intravitreal injections involve buy-and-bill drugs alongside the procedure
Cataract surgery carries a global period and premium lens upgrades billed to the patient
Diagnostic imaging such as OCT carries frequency limits per diagnosis
Bilateral procedures follow payer-specific modifier conventions
Coding
Ophthalmology procedure codes we work with daily
A representative sample, not an exhaustive list. Coders are assigned by specialty rather than pooled.
| Code | Description |
|---|---|
| 92014 | Ophthalmological exam, established patient, comprehensive |
| 66984 | Cataract extraction with intraocular lens insertion |
| 67028 | Intravitreal injection of pharmacologic agent |
| 92134 | Optical coherence tomography, retina |
| 92083 | Visual field examination, extended |
| 65855 | Trabeculoplasty by laser surgery |
Revenue leakage
Where ophthalmology practices lose money
These are the denial patterns specific to this specialty — the ones a general-purpose billing service will not be looking for.
Wrong carrier routed
Medical eye conditions submitted to the vision plan, or routine refraction submitted to the medical plan.
OCT frequency limits
Imaging denied where the count exceeds the payer's covered frequency for the documented diagnosis.
Injection drug units
Intravitreal drug units miscalculated or wastage not billed on single-use vials.
Global period conflicts
Post-operative visits after cataract surgery billed separately within the global period.
Eye code versus E/M
Eye codes billed where documentation does not include the required examination elements for that level.
Payer landscape
What ophthalmology practices need to know about payers
Payer policy drives more ophthalmology denials than coding does. Knowing the policy before the service is what prevents them.
- Routine refraction is generally a vision plan benefit and not covered by medical plans; medical eye disease is the reverse.
- Premium intraocular lens upgrades are patient responsibility and must be documented with advance beneficiary notice where Medicare applies.
- Anti-VEGF injection coverage often requires step therapy through a preferred agent first.
Questions
Ophthalmology billing FAQ
Last updated August 20, 2026
Reviewed by a certified coding leadBy the reason for the visit, not the patient's preference. A visit for a medical eye condition such as glaucoma or diabetic retinopathy goes to the medical plan; a routine refraction for glasses goes to the vision plan. When a routine visit uncovers pathology, the medical plan generally becomes responsible from that point — and documenting the transition is what makes the claim defensible.
Eye codes (92002–92014) and office E/M codes (99202–99215) are alternative pathways for the same encounter with different documentation requirements. Eye codes require specific examination elements; E/M codes turn on medical decision making or time. Choosing the pathway that both matches the documentation and reimburses better is a per-encounter decision.
The injection procedure and the drug are billed separately. Anti-VEGF agents are high-cost buy-and-bill drugs, so unit calculation and wastage documentation carry the same financial weight as in oncology. Many payers also require step therapy through a preferred agent before covering an alternative.
Cataract surgery carries a 90-day global period covering routine post-operative care. Premium lens upgrades are billed to the patient separately, not the payer, and Medicare patients require advance notice documenting their financial responsibility before surgery.
Primary sources
Coverage, rates and local policy for ophthalmology, at the source.
- Medicare Coverage Database (LCD/NCD) (opens in a new tab)
Centers for Medicare & Medicaid Services — Searchable national and local coverage determinations. The direct answer to whether a diagnosis supports medical necessity for a given procedure.
- Medicare Physician Fee Schedule lookup (opens in a new tab)
Centers for Medicare & Medicaid Services — Official allowed amounts by CPT/HCPCS code and locality. The reference point most commercial contracts are written against as a percentage.
- NCCI Policy Manual for Medicare Services (opens in a new tab)
Centers for Medicare & Medicaid Services — The reasoning behind the edits, chapter by chapter. Where the edit files tell you two codes conflict, this explains why — which is what an appeal has to address.
Reading
Ophthalmology billing, in depth
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