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    v1.0.30
    OpenPayerBilling CodesDiagnostic Ultrasound Procedures of the Head and NeckCPT cpt-76511-quantitative-a-scan-ophthalmic-ultrasound
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    CPT 76511: Quantitative A‑scan Ultrasound of Intraocular/Orbital Structures

    Medicare pays $40 on average nationally for this procedure.

    CPT code 76511 describes quantitative A‑scan ultrasound imaging performed to evaluate intraocular and orbital structures, a diagnostic ophthalmic ultrasound service used to measure axial length and characterize intraocular masses; the service type is diagnostic ultrasound and the typical site of service is an ophthalmology clinic or outpatient imaging suite where ocular ultrasound is performed.

    For related coverage guidance, see recent payer policy updates: Office-based Laryngeal Procedures, Injectable Dermal Fillers and Bulking Agents (for New Mexico Only), Injectable Dermal Fillers and Bulking Agents (for Kentucky Only).

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    Table of contents

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    Clinical & Coding Specifications

    Clinical Context

    A 62-year-old patient presents to an ophthalmology clinic with progressive visual loss and a history of cataract surgery in the affected eye. The ophthalmologist suspects posterior segment pathology and needs quantitative intraocular measurements of axial length and intraocular structure assessment prior to cataract extraction planning or to evaluate for intraocular mass or retinal detachment. The clinical workflow begins with nursing intake and history focusing on visual changes, prior ocular surgeries, and ocular pain. Visual acuity and intraocular pressure are measured. The provider performs a focused ocular exam; when media opacity or other conditions limit optical biometry or direct visualization, the provider orders quantitative A–scan ultrasound (CPT 76511). A licensed ophthalmologist or trained ultrasonographer performs the A–scan in a dedicated procedure room using appropriate topical anesthesia. Measurements are obtained from one or both eyes, recorded in the chart, and used to calculate intraocular lens power if indicated or to document axial length and presence of intraocular mass/retinal detachment. Results are interpreted by the provider who documents findings, measurement values, and clinical impression. The encounter may include the professional component billed by the physician and the technical component billed by the facility or diagnostic imaging service, as appropriate.

    Related CPT Codes

    CPT CodeDescriptionRelationship to This Procedure
    76514Diagnostic ultrasound of the eye and orbit, B-scan and quantitative A-scan when performed; completeMay be performed in conjunction when B-scan imaging is also needed for two-dimensional evaluation
    92133Scanning computerized ophthalmic diagnostic imaging, posterior segment, with interpretation and report, unilateral or bilateral; OCT retina with interpretation and reportOften performed before or after A–scan for macular or retinal structural assessment
    92250Fundus photography with interpretation and reportComplementary to A–scan when documenting posterior pole pathology or mass lesions
    99173Screening test of visual acuity, quantitative; performed by a technicianPreceding test in workflow for baseline visual acuity prior to diagnostic A–scan
    65778Therapeutic procedure on cornea (example code for context)Not directly related; included to show procedural context in surgical planning (If not applicable to payer workflows, facility may not list this)

    Related Modifiers

    8 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…
    50Modifier –50 (Bilateral Procedure) is appended to a CPT code when an identical procedure is performed on paired anatomical structures during the same operative session. The AMA states to add…- Use modifier -50 when the same CPT surgical, diagnostic, or radiology procedure is performed on paired anatomical structures (both sides of the body) during the same operative/session by the same…
    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…
    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…
    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…

    Related Provider Taxonomies

    8 rows

    Taxonomy Code
    207K00000X
    174400000X
    363L00000X
    246Z00000X
    273R00000X
    246RM2200X
    163WW0000X
    204R00000X

    Related ICD-10-CM Codes

    18 rows

    ICD-10-CM CodeDescription
    H02.89Other specified disorders of eyelid
    H05.00Unspecified acute inflammation of orbit
    H10.9Unspecified conjunctivitis
    H11.10Unspecified conjunctival degenerations
    H16.9Unspecified keratitis
    H18.9Unspecified disorder of cornea
    H21.9Unspecified disorder of iris and ciliary body
    H26.9Unspecified cataract
    H27.9Unspecified disorder of lens
    H35.00Unspecified background retinopathy

    Showing 1–10 of 18

    Related Payer Policy Updates

    Specialty: Otorhinolaryngology (ENT)1 / 2

    10 rows

    PolicyPayerEffective Date
    Office-based Laryngeal ProceduresPremera Bluecross2026-10-06
    Injectable Dermal Fillers and Bulking Agents (for New Mexico Only)UnitedHealthcare2026-10-01
    Injectable Dermal Fillers and Bulking Agents (for Kentucky Only)UnitedHealthcare2026-10-01
    Hearing Aids and Devices Including Wearable, Bone-Anchored, and Semi-Implantable (for Indiana Only)UnitedHealthcare2026-10-01
    Otoacoustic Emissions Testing (for Oxford Only)UnitedHealthcare2026-10-01
    Injectable Dermal Fillers and Bulking AgentsUnitedHealthcare2026-10-01
    Injectable Dermal Fillers and Bulking AgentsUnitedHealthcare2026-10-01
    Sinus Surgeries and Interventions (for North Carolina Only)UnitedHealthcare2026-10-01
    Injectable Dermal Fillers and Bulking Agents (for Nebraska Only)UnitedHealthcare2026-10-01
    Injectable Dermal Fillers and Bulking Agents (for Kansas Only)UnitedHealthcare2026-10-01

    Related Codes

    CPT-76506-ECHOENCEPHALOGRAPHY-INTRACRANIAL-ULTRASOUND

    CPT 76506: Echoencephalography (Cranial Ultrasound)

    CPT-76510-OCULAR-ULTRASOUND-B-SCAN-AND-A-SCAN

    CPT 76510: Ocular B‑scan and Quantitative A‑scan Ultrasound

    CPT-76512-B-SCAN-OPHTHALMIC-ULTRASOUND-EYE-ORBIT

    CPT 76512: B‑scan Ultrasound of Intraocular and Orbital Structures

    CPT-76513-IMMERSION-B-SCAN-ANTERIOR-SEGMENT-IMAGING

    CPT 76513: Anterior Segment Imaging with Immersion B-Scan or Biomicroscopy

    CPT-76514-CONTACT-B-SCAN-CORNEAL-THICKNESS-PACHYMETRY

    CPT 76514: Corneal Thickness Measurement by Contact B-Scan

    CPT-76516-A-SCAN-OCULAR-AXIAL-LENGTH-MEASUREMENT

    CPT 76516: A-scan Ultrasound Axial Length Measurement

    CPT-76519-A-SCAN-OCULAR-BIOMETRY-IOL-CALCULATION

    CPT 76519: A-scan Ultrasound Axial Length for IOL Calculation

    CPT-76529-OPHTHALMIC-ULTRASOUND-INTRAOCULAR-FOREIGN-BODY-LOCALIZATION

    CPT 76529: Ophthalmic Ultrasound Localization of Intraocular Foreign Body

    CPT-76536-HEAD-NECK-SOFT-TISSUE-ULTRASOUND

    CPT 76536: Ultrasound, Soft Tissues of Head and Neck

    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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