What ophthalmology billing services need to cover
Ophthalmology billing services have to handle routine vision benefits, medical eye care, office diagnostic testing, high-cost injection drugs and surgery with a 90-day global period, often for the same patient in the same year. Each part follows different rules, and many eye diagnoses carry laterality in the ICD-10-CM code itself, so details that other specialties can skip become reasons for denial here.
Good ophthalmology medical billing starts at the front desk with the right benefit, continues with exact coding and modifiers, and ends with close follow-up on drug and surgical payments. The sections below describe the rules we apply for general ophthalmology, cataract and retina practices.
Eligibility: medical eye care versus routine vision
Many patients have both a medical plan and a separate vision plan. A visit for glaucoma, diabetic eye disease or a new symptom is billed to the medical plan, while a routine eye exam for glasses may belong to the vision plan. We verify eligibility and benefits for both and confirm which one applies to the reason for the visit.
Refraction (92015) is not covered by Medicare and is excluded by many medical plans. We identify it as patient responsibility at check-in and record any required notice, rather than finding out after a denial. Medicare does cover one pair of conventional glasses or contact lenses after cataract surgery with an intraocular lens, which is billed by the supplier who furnishes them.
Ophthalmology coding: codes and rules specific to this specialty
Ophthalmology coding starts with the visit. Eye exam codes 92002 and 92004 (new patient) and 92012 and 92014 (established patient) describe intermediate and comprehensive ophthalmological services. Standard E/M codes can be used instead, and the choice should follow what the documentation supports and what the payer prefers. The table below lists common ophthalmology CPT codes.
| Code | Service (summary) | Billing note |
|---|---|---|
| 92002 / 92004 | Ophthalmological exam, new patient, intermediate / comprehensive | Alternative to new-patient E/M codes |
| 92012 / 92014 | Ophthalmological exam, established patient, intermediate / comprehensive | Alternative to established-patient E/M codes |
| 92015 | Determination of refractive state | Noncovered by Medicare; often patient responsibility |
| 92133 / 92134 | Scanning computerized ophthalmic imaging (OCT), optic nerve / retina | Payers limit frequency; check edits before billing both on one day |
| 92083 | Visual field examination, extended | Needs interpretation and report |
| 66984 | Cataract removal with intraocular lens, without complex features | 90-day global |
| 66982 | Complex cataract removal with intraocular lens | 90-day global; record must show the complexity |
| 67028 | Intravitreal injection of a pharmacologic agent | 0-day global; drug billed separately |
| 66821 | Laser discission of secondary membrane (YAG capsulotomy) | Check timing against the cataract global period |
Beyond RT, LT and 50, eyelid procedures use modifiers E1 through E4 to identify each lid. Diagnostic tests such as OCT and visual fields need a documented interpretation and report, and payers apply frequency limits, so we check the patient's testing history before the claim is sent.
Cataract surgery billing
Cataract surgery billing begins with the code choice. Medicare's billing and coding article on complex cataract surgery explains that 66982 is supported only when the case requires devices or techniques not generally used in routine surgery, and the operative note has to show what made it complex. Routine cases are billed with 66984.
When post-operative care is shared with an optometrist, the surgeon bills with modifier 54 and the co-managing provider with 55, each with transfer dates on record. Premium lenses need separate handling: CMS rulings allow a Medicare patient to pay for the added cost of a presbyopia-correcting or astigmatism-correcting lens and related services, while the covered cataract procedure is billed as usual. We keep those charges separate and make sure the patient's written agreement is on file.
Intravitreal injection billing
Intravitreal injection billing has two parts: the procedure (67028) and the drug, which is billed with its HCPCS code and units based on the dose in the code descriptor. Most anti-VEGF drugs need authorization, and some plans require step therapy with a lower-cost agent first. Approvals are tracked per eye and per drug, since switching agents needs a new request.
For Medicare, drugs from single-dose containers are reported with the JW modifier for any discarded amount or the JZ modifier when none was discarded. When both eyes are injected on the same day, the procedure and each drug line need correct side and unit reporting under the payer's instructions. Our prior authorization team tracks each approval window against the injection schedule.
Common denials and how we prevent them
- Refraction or routine exam billed to a medical plan that excludes it: flagged at check-in and collected from the patient where appropriate
- Diagnosis laterality that does not match the procedure modifier: checked by coders before submission
- Diagnostic test frequency exceeded: testing history reviewed before the claim is sent
- Drug units or JW/JZ modifiers missing or wrong: units calculated from the descriptor dose and the administration record
- Post-operative visits billed inside the global period: tracked against the surgery date, with modifier 24 only for unrelated care
- Injection drug without a current authorization: approvals tracked per eye and agent
When a denial does arrive, our denial management team corrects and resubmits coding errors and appeals medical necessity denials with the exam findings and imaging results attached. Drug claims are compared with contracted rates and short payments are pursued.
Credentialing for eye care practices
Ophthalmologists who operate at an ASC or hospital need every location on their payer files, and practices that employ optometrists need those providers enrolled with each medical plan and vision plan they bill. Our credentialing and enrollment team tracks each application through a nine-stage process, from document collection and NPI and CAQH setup through payer applications, follow-ups and final approval.
How Fastora works with your practice
Fastora works in three phases. Our Virtual Assistant team handles scheduling, registration, insurance verification and copays collected upfront. Scriber support records visit documentation in your EHR in real time. Certified medical billing and coding professionals then handle claim submission, payment posting, denial management, AR follow-up and patient billing.
We work inside your existing EHR/PM system under the access you grant, with no software to install and no hidden setup fees, and we sign a BAA before accessing PHI. You get a dedicated account contact, transparent dashboards and a monthly review call. See our full range of medical billing services, learn how we quote, or start with a free billing assessment.
Choosing an ophthalmology billing company
An ophthalmology billing company should handle both sides of an eye practice: the medical side (cataract surgery, glaucoma, retinal procedures, injections with their drug-billing rules) and the routine/vision side with its separate plans and coordination of benefits. Ask how they code eye exams versus E/M visits, how they handle bilateral procedure rules, and how prior authorizations for injections and surgeries are tracked. The practice that bills medical and vision claims through one team avoids the most common ophthalmology leak: the claim sent to the wrong plan. See our optometry billing page for the vision-side workflow, our medical coding service reviews procedure claims to the note, our prior authorization service tracks injection and surgery approvals.