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    v1.0.30
    OpenPayerBilling CodesDurable Medical EquipmentHCPCS hcpcs-e2120-pulse-generator-tympanic-endolymphatic-treatment
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    HCPCS Level II E2120: Pulse Generator for Tympanic Endolymphatic Treatment

    HCPCS Level II code E2120 describes a pulse generator system for tympanic treatment of inner ear endolymphatic fluid, a device-based therapeutic service used to deliver controlled pulsatile energy to the middle/inner ear via the tympanic membrane; service type is device-based tympanic/endolymphatic therapy and the typical site of service is an outpatient ENT clinic or ambulatory surgical center where device placement and programmed therapy occur.

    For related coverage guidance, see recent payer policy updates: Hospital Beds Corporate Medical Policy, Continuous Passive Motion Devices with Remote Monitoring or Adaptive Capabilities, Bone Growth Stimulators.

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    Table of contents

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    Clinical & Coding Specifications

    Clinical Context

    A 56-year-old patient with chronic, debilitating Ménière disease presents to an otolaryngology clinic for consideration of a tympanic pulse generator system to treat inner ear endolymphatic hydrops. The patient reports recurrent vertigo spells, fluctuating sensorineural hearing loss, tinnitus, and persistent aural fullness despite conservative measures including dietary sodium restriction, diuretics, vestibular rehabilitation, and intratympanic steroid injections. After multidisciplinary evaluation, the otologist and an audiologist confirm persistent symptoms and discuss implantation of a transtympanic pulse generator system designed to modulate inner ear endolymphatic fluid dynamics.

    The typical clinical workflow includes pre-procedure assessment (history, physical exam, audiometry, and vestibular testing), informed consent, device implantation under local anesthesia with sedation or general anesthesia in an ambulatory surgery center or hospital outpatient department, device programming and intraoperative confirmation of placement, and post-procedure follow-up for device activation, audiometric monitoring, and vertigo symptom assessment. Typical site of service is an ambulatory surgery center or hospital outpatient department. The service type is implantation of a tympanic pulse generator system for treatment of inner ear endolymphatic fluid disorders, including intraoperative and immediate postoperative device management and programming.

    Related CPT Codes

    CPT CodeDescriptionRelationship to This Procedure
    69990Microsurgical techniques, requiring use of an operating microscope (list separately in addition to code for primary procedure)May be used in conjunction with tympanic pulse generator implantation when microsurgical techniques are required.

    | 69930 | Transmastoid approach to inner ear (e.g., planned procedures involving the inner ear) — note: commonly paired procedures for otologic access | Used when additional surgical access to the inner ear or mastoid is required along with device placement.

    | 64585 | Percutaneous implantation of neurostimulator electrode array; peripheral nerve (e.g., occipital nerve) — analogous technique code when neuromodulation components are part of care planning | Used as a related neuromodulation implantation code in practice patterns when documentation requires additional neurostimulation procedure codes; verify payer coverage.

    | 92557 | Comprehensive audiometry threshold evaluation and speech recognition (aid in diagnosis and baseline testing) | Performed pre- and post-implantation to assess hearing thresholds and monitor changes associated with treatment.

    | 92601 | Diagnostic analysis of cochlear implant, with programming and adjustment (one or more therapy sessions) | Used as an analogous programming/adjustment code for implantable hearing or neuromodulation devices when device interrogation and programming occur; document device-specific programming activities.

    | 69990 | (See first row) Microsurgical techniques | May be billed as an add-on when the procedure requires operative microscope assistance.

    Related Modifiers

    9 rows

    ModifierDescriptionWhen to Use
    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…
    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…
    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…
    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…
    82Modifier 82 is appended to a surgical CPT code to indicate that an attending physician acted as an assistant because a qualified resident surgeon was unavailable. In teaching hospitals it documents…- When to use: Append modifier 82 in teaching-hospital settings to indicate a physician served as an assistant surgeon because a qualified resident surgeon was unavailable (includes situations where…

    Related Provider Taxonomies

    8 rows

    Taxonomy Code
    207Y00000X
    207L00000X
    1835P2201X
    363LP2300X
    132700000X
    176P00000X
    156FC0801X
    225C00000X

    Related Payer Policy Updates

    Specialty: Durable Medical Equipment (DME)1 / 3

    10 rows

    PolicyPayerEffective Date
    Hospital Beds Corporate Medical Policybcbsvermont2027-01-01
    Continuous Passive Motion Devices with Remote Monitoring or Adaptive CapabilitiesBlue Cross Blue Shield - Rhode Island2026-12-01
    Bone Growth StimulatorsMass General Brigham Health Plan2026-12-01
    Prior Authorization for Durable Medical Equipment (DME)Blue Cross Blue Shield - Rhode Island2026-12-01
    Patient Liftsuniverahealthcare2026-11-16
    Medical Car SeatsCareSource2026-11-01
    Non-Invasive Home Mechanical Ventilation (E0466)CareSource2026-11-01
    Digestive Enzyme Cartridgeshusky_health2026-11-01
    Hearing Aids and Assistive Listening Devices for Children Enrolled in Birth-to-Threehusky_health2026-11-01
    Home Non-Invasive Positive Pressure Ventilation (NIPPV) Devices for Respiratory Insufficiency and Failureexcellus_health_plan_inc2026-10-15

    Related Codes

    HCPCS-E0100-CANE-DURABLE-MEDICAL-EQUIPMENT-AMBULATION

    HCPCS E0100: Cane, Adjustable or Fixed, With Tip

    HCPCS-E0105-CANE-QUAD-THREE-PRONG-MOBILITY-AID

    HCPCS Level II E0105: Cane, Quad or Three-Prong, Includes Tips

    HCPCS-E0110-FOREARM-CRUTCHES-PAIR-DME-MOBILITY

    HCPCS Level II E0110: Forearm Crutches, Pair, Complete with Tips and Handgrips

    HCPCS-E0111-CRUTCH-FOREARM-DURABLE-MEDICAL-EQUIPMENT

    HCPCS Level II E0111: Crutch, Forearm, With Tip and Handgrips

    HCPCS-E0112-UNDERARM-WOOD-CRUTCHES-PAIR

    HCPCS Level II E0112: Underarm Wooden Crutches, Pair

    HCPCS-E0113-CRUTCH-UNDERARM-WOOD-ADJUSTABLE-FIXED-WITH-PAD-TIP-HANDGRIP

    HCPCS Level II E0113: Crutch Underarm, Wood, Adjustable or Fixed

    HCPCS-E0114-UNDERARM-CRUTCHES-PAIR-ADJUSTABLE-FIXED

    HCPCS Level II E0114: Underarm (Axillary) Crutches, Adjustable or Fixed, Pair

    HCPCS-E0116-UNDERARM-CRUTCH-NON-WOOD-ADJUSTABLE-FIXED

    HCPCS E0116: Underarm Crutch, Non-Wood, Adjustable/Fixed with Pad

    HCPCS-E0117-ARTICULATING-SPRING-ASSISTED-UNDERARM-CRUTCH

    HCPCS Level II E0117: Crutch, Underarm, Articulating, Spring-Assisted

    HCPCS-E0118-LOWER-LEG-PLATFORM-CRUTCH-SUBSTITUTE

    HCPCS E0118: Crutch Substitute, Lower Leg Platform

    Showing 1–10 of 670

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    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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