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    v1.0.30
    OpenPayerBilling CodesOther Specialized Ophthalmological Services and ProceduresCPT cpt-92274-multifocal-electroretinography-mferg-retinal-function
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    CPT 92274: Multifocal Electroretinography (mfERG) for Retinal Function

    Medicare pays $64 on average nationally for this procedure.

    CPT code 92274 describes an electrophysiologic test of retinal function using multifocal electroretinography (mfERG) to detect localized retinal abnormalities or cone–rod dysfunction; this diagnostic procedure is a specialized ophthalmic/retinal functional test typically performed in an outpatient ophthalmology or retina clinic, eye hospital, or diagnostic testing center with equipment to record localized retinal electrical responses.

    For related coverage guidance, see recent payer policy updates: Corneal Remodeling for Refractive Errors and Corneal Grafting and Transplantation, Glaucoma Agents iDose TR (travoprost intracameral implant), Topical Treatments for Dry Eye Disease.

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    Clinical & Coding Specifications

    Clinical Context

    A typical patient is an adult referred by an ophthalmologist or retina specialist for evaluation of localized retinal dysfunction, persistent visual symptoms, or suspected cone–rod dystrophy. Example scenario: a 52-year-old patient reports progressive central vision blur and metamorphopsia in one eye over several months. Visual acuity and dilated fundus exam show subtle macular changes without clear etiology. The clinician orders multifocal electroretinography to map localized retinal (primarily macular and cone system) electrical responses to detect focal dysfunction and to differentiate maculopathy from optic nerve or cortical causes. Clinical workflow: the patient arrives to an outpatient ophthalmic electrodiagnostic laboratory or hospital outpatient department; pupils are pharmacologically dilated; corneal or foil electrodes are placed after topical anesthesia; the technician records multifocal ERG signals while the patient fixates on a patterned stimulus; the provider interprets waveforms, compares to normative data, documents localized amplitude and implicit time abnormalities, and integrates findings with clinical exam, OCT, fluorescein angiography, and visual field testing as indicated. Typical site of service: ophthalmology clinic-based electrodiagnostic lab or hospital outpatient department specializing in retinal diagnostics.

    Related CPT Codes

    CPT CodeDescriptionRelationship to This Procedure
    92250Fundus photography with interpretation and reportPerformed before or after mfERG to document retinal appearance and correlate structural with functional findings
    92083Visual field examination, extensive; complex, with interpretation and report (e.g., microperimetry or automated kinetic perimetry when applicable)Used to correlate localized functional deficits identified on mfERG with psychophysical visual field testing
    92134Scanning computerized ophthalmic diagnostic imaging, posterior segment, with interpretation and report (e.g., OCT)Structural imaging of macula and retina that complements mfERG functional mapping
    92235Fluorescein angiography (FA) with interpretation and reportUsed when vascular or leaking lesions are suspected to explain localized ERG abnormalities
    95920Neuromuscular testing; needle EMG, each extremity, without interpretation and report (not typical for ophthalmic testing)Data not available in the input.

    Related Modifiers

    11 rows

    ModifierDescriptionWhen to Use
    26Modifier 26 (Professional Component) identifies and bills only the professional portion of a split service — the physician’s interpretation, report, and medical judgment — when the technical…- Use CPT Modifier -26 when you are billing only the professional component (PC) of a split‑bill eligible service—i.e., you performed the physician interpretation, medical judgment and prepared a…
    59Modifier 59 indicates a distinct procedural service when two procedures that are not normally billed together are clinically and procedurally separate. The CPT definition (as reiterated by CMS)…- Use modifier -59 to report a distinct procedural service when documentation supports that the procedure reported is not normally billed together with another service on the same day because of a…
    52Modifier ‑52 (Reduced Services) indicates that a service or procedure was partially reduced or omitted at the provider’s discretion, allowing reporting of the basic procedure number with a qualifier…- Use modifier -52 when a physician or qualified health professional electively reduces or omits part of a procedure or service (for example, performing fewer required views or omitting a portion of…
    53Modifier 53 (Discontinued Procedure) signals that a surgical or diagnostic service was begun by the physician but terminated because of extenuating circumstances that threatened the patient’s…- Use modifier -53 when a physician/qualified healthcare professional has started a surgical or diagnostic procedure (e.g., anesthesia administered, incision or scope insertion) and then discontinues…
    62Modifier 62 indicates that two surgeons function as co‑surgeons, each performing distinct parts of the same primary surgical procedure. It is appended to the primary procedure code (and any…- Use modifier -62 when two surgeons act as co‑surgeons (both primary surgeons) on a single definitive primary procedure, each performing distinct parts of the same surgical procedure (append -62 to…
    76Modifier -76, Repeat Procedure or Service by Same Physician or Other Qualified Health Care Professional, is appended when the same provider performs an identical, medically necessary procedure or…- Use modifier -76 when the same physician or other qualified health care professional performs an identical procedure or service a second (or subsequent) time on the same date of service and the…
    78CPT modifier -78 indicates an unplanned, related return to the operating or procedure room by the same provider during the global postoperative period. It is appended when treatment for a…- Use modifier -78 when an unplanned, related complication during the original procedure’s global postoperative period requires the patient to return to a formal operating or procedure room and the…
    80CPT® Modifier 80 (Assistant Surgeon) is appended to a surgical CPT code when a physician (MD or DO) provides full, continuous assistance throughout the operative procedure. It is intended only for…- Use CPT Modifier -80 when a physician (MD or DO) serves as an assistant surgeon and provides full, continuous assistance throughout the entire operative procedure; append -80 to the surgical CPT…
    22Modifier –22 (Increased Procedural Services) is used when a reported procedure is substantially more extensive than normally required. The CPT Manual and CMS state it may be appended only when the…- When to use: Append modifier -22 to a procedural CPT code when the service performed is substantially more extensive than the usual service described by that code — i.e., the procedure required…
    23Modifier -23 (Unusual Anesthesia) is used on anesthesia service CPT codes when a procedure that normally requires no anesthesia or only local anesthesia must be performed under general anesthesia…- Use modifier -23 only on anesthesia CPT codes (00100–01999) when a procedure that normally requires no anesthesia or only local anesthesia must be performed under general anesthesia because of…

    Showing 1–10 of 11

    Related Provider Taxonomies

    8 rows

    Taxonomy Code
    207W00000X
    2084P0800X
    207K00000X
    246XS1301X
    225CA2500X
    364ST0500X
    320700000X
    261QP0904X

    Related Payer Policy Updates

    Specialty: Ophthalmology/Optometry1 / 2

    10 rows

    PolicyPayerEffective Date
    Corneal Remodeling for Refractive Errors and Corneal Grafting and TransplantationHealth-New-England2027-02-01
    Glaucoma Agents iDose TR (travoprost intracameral implant)Mass General Brigham Health Plan2027-01-04
    Topical Treatments for Dry Eye Diseaseblue cross blue shield - louisiana2027-01-01
    Corneal Collagen Cross-LinkingMass General Brigham Health Plan2026-11-01
    Intraocular Lens ImplantCigna2026-11-01
    VizzCigna2026-11-01
    Travoprost Intracameral ImplantBluecross Idaho2026-11-01
    Ophthalmology - Pilocarpine 1.25%Cigna2026-10-15
    Intravitreal and PunctumBlue Cross Blue Shield - Rhode Island2026-10-01
    Cataract Removal Surgery for AdultsAnthem2026-10-01

    Related Codes

    CPT-92265-EXTRAOCULAR-MUSCLE-ELECTROMYOGRAPHY

    CPT 92265: Electromyography of Extraocular Muscles

    CPT-92270-ELECTRO-OCULOGRAPHY-INTERPRETATION-REPORT

    CPT 92270: Electro-oculography with Interpretation and Report

    CPT-92273-ELECTROPHYSIOLOGIC-TEST-RETINAL-FUNCTION-ERG

    CPT 92273: Electrophysiologic Test of Retinal Function

    CPT-92283-ANOMALOSCOPE-COLOR-VISION-TESTING-RED-GREEN

    CPT 92283: Color Vision Testing with Anomaloscope

    CPT-92284-RETINAL-PHOTORECEPTOR-FUNCTION-TESTING-DARK-ADAPTATION

    CPT 92284: Dark Adaptation Test of Retinal Photoreceptor Function

    CPT-92285-OCULAR-PHOTOGRAPHY-DOCUMENTATION

    CPT 92285: Photography of Abnormalities for Documentation

    CPT-92286-ANTERIOR-SEGMENT-OCULAR-VASCULAR-EXAMINATION-INTERPRETATION

    CPT 92286: Fluorescein Angiography, Anterior Segment

    CPT-92287-IRIS-VASCULAR-IMAGING-NEOVASCULARIZATION-EVALUATION

    CPT 92287: Iris Vasculature Angiography

    CPT-92288-ROD-FUNCTION-DARK-ADAPTATION-SCREENING

    CPT 92288: Dark Adaptation Screening for Rod Function

    Frequently Asked Questions

    References

    1. 1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
    2. 2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
    3. 3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.
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