CPT Code 92134: Scanning computerized ophthalmic diagnostic imaging, posterior segment, with interpretation and report, unilateral or bilateral; retina

What is CPT code 92134?

CPT code 92134 describes scanning computerized ophthalmic diagnostic imaging of the posterior segment, specifically of the retina, with interpretation and report. This non-contact, non-invasive procedure—commonly performed using optical coherence tomography (OCT)—captures detailed cross-sectional images of the retinal layers to identify or monitor structural changes.

The code includes both the technical and professional components, meaning it encompasses image acquisition and clinical interpretation. It is reported once per date of service, regardless of whether the imaging is performed unilaterally or bilaterally, and modifier 50 is not required. CPT 92134 is frequently used to evaluate and manage retinal conditions such as diabetic retinopathy, age-related macular degeneration (AMD), and macular edema. It must be medically necessary and performed by or under the supervision of a qualified eye care professional.

Documentation requirements

Accurate and thorough documentation is essential for justifying CPT code 92134 and ensuring compliance with payer policies, particularly Medicare and commercial insurers.

Order and medical necessity

There must be a valid physician order for the OCT, based on medical necessity. Common indications include retinal disease (e.g., diabetic macular edema), glaucoma, age-related macular degeneration (AMD), or optic nerve head anomalies. The documentation should specify the clinical reason for imaging the posterior segment.

Imaging performed and anatomical focus

The medical record must confirm that posterior segment OCT was performed, detailing which anatomical area was scanned—typically the retina, macula, or optic nerve. The provider may also note whether the scan was performed unilaterally or bilaterally, if applicable.

Interpretation and report

The interpretation should include a clinically relevant analysis of the OCT images, with findings and their implications for diagnosis, monitoring, or treatment. A separate, signed report must be included in the patient's chart, as 92134 includes the professional component of the service.

Billing guidelines

CPT 92134 is a global code encompassing technical and professional components. Understanding payer-specific policies, especially under Medicare, is key to accurate reimbursement for CPT code 92134.

Do not append modifier 50

CPT 92134 is generally reported once per service date, regardless of whether the test is performed on one or both eyes. The code is inherently bilateral, and modifier 50 should not be used.

Frequency limitations and payer policies

Many payers, including Medicare, impose frequency limits on how often 92134 can be billed—often once per eye per month for chronic conditions. Always check Local Coverage Determinations (LCDs) or payer-specific coverage policies to avoid denials.

Site of service and component billing

If performed in a facility setting, such as a hospital outpatient department, the provider may only bill for the professional component using modifier 26. The global service (no modifier) may be billed if performed in an office owned by the provider. Use modifier TC only if billing is for the technical component.

Other relevant CPT codes

• 92133 – Computerized ophthalmic imaging of the optic nerve
• 92250 – Fundus photography with interpretation and report
• 92083 – Visual field examination, unilateral or bilateral, with interpretation and report; extended examination
• 92201 – Extended ophthalmoscopy with retinal drawing and interpretation