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    v1.0.30
    OpenPayerBilling CodesMedical And Surgical SuppliesHCPCS hcpcs-a7025-high-frequency-chest-wall-oscillation-vest-replacement
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    HCPCS Level II A7025: High Frequency Chest Wall Oscillation Vest, Replacement

    HCPCS Level II code A7025 describes a replacement high frequency chest wall oscillation system vest intended for use with patient-owned equipment; the service is durable medical equipment (DME) replacement and the typical site of service is the patient’s home where the vest pairs with an existing oscillator to provide airway clearance therapy for respiratory conditions.

    For related coverage guidance, see recent payer policy updates: Diabetic Supplies, Radiofrequency Ablation for Thyroid Nodules, Continuous Glucose Monitoring and Insulin Delivery for Managing Diabetes (for Idaho Only).

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    Clinical & Coding Specifications

    Clinical Context

    A patient with chronic bronchiectasis or cystic fibrosis who uses a high-frequency chest wall oscillation (HFCWO) system presents for replacement of a worn or damaged therapy vest. The patient already owns the HFCWO device but requires a new vest component (A7025) due to deterioration of the garment, loss of seal, or contamination that impairs effective airway clearance. The typical workflow: the physician documents the ongoing need for airway clearance therapy in the medical record, noting diagnosis, frequency of use, and clinical response. A durable medical equipment (DME) supplier receives a prescription or order specifying replacement vest A7025 for use with patient-owned equipment, verifies patient identity and insurance, confirms the device model compatibility, obtains any required prior authorization, and delivers the replacement vest with basic fitting instructions. The supplier bills using HCPCS Level II code A7025. Medicare or commercial payors may require documentation that the existing system is functional and that the vest is being replaced (not a full device replacement). Typical site of service is outpatient or home health setting where the vest is used at home for chest physiotherapy.

    Related CPT Codes

    CPT CodeDescriptionRelationship to This Procedure
    94640Pressurized or nonpressurized inhalation treatment for acute airway obstruction; e.g., nebulizer therapyOften performed alongside HFCWO therapy sessions to deliver bronchodilators or mucolytics that augment airway clearance.
    E1399Durable medical equipment, miscellaneous (note: HCPCS not CPT)Used by some suppliers for miscellaneous DME items not specifically listed; may appear on claims in conjunction with A7025 when additional accessories are provided.
    E0445Inhalation drug delivery, nebulizer (note: HCPCS not CPT)Nebulizer provision or maintenance commonly occurs in the same clinical plan for patients using HFCWO vests.
    G0402Initial preventive physical examination; face-to-face visit (Medicare)Not directly related but may be used for comprehensive assessments where review of home equipment needs occurs.
    99213Office or other outpatient visit for evaluation and management of an established patientClinician visit where continued need for HFCWO vest replacement is documented and a prescription/order for A7025 is written.
    94664Hyperinflation therapy, incentive spirometry (simple)May be part of a broader airway clearance regimen coordinated with HFCWO therapy.

    Related Modifiers

    7 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…
    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…
    55Modifier –55 indicates the billing provider furnished only postoperative management for a procedure that has a global surgical period. According to AAPC, this modifier is appended to the same CPT…- Use modifier -55 when billing the same CPT surgical code that has a 10- or 90-day global period and you, as a provider other than the original surgeon, furnished ONLY postoperative management (no…
    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…

    Related Provider Taxonomies

    8 rows

    Taxonomy Code
    261QF0400X
    251B00000X
    207RC0000X
    3336C0002X
    207LP2900X
    2278P1005X
    106E00000X
    246ZB0500X

    Related Payer Policy Updates

    Specialty: Endocrinology1 / 3

    10 rows

    PolicyPayerEffective Date
    Diabetic SuppliesCigna2026-10-15
    Radiofrequency Ablation for Thyroid NodulesCigna2026-10-15
    Continuous Glucose Monitoring and Insulin Delivery for Managing Diabetes (for Idaho Only)UnitedHealthcare2026-10-01
    Tzield (teplizumab-mzwv) CoverageUnitedHealthcare2026-10-01
    Continuous Glucose Monitoring and Insulin Delivery for Managing Diabetes (for Indiana Only)UnitedHealthcare2026-10-01
    Medical Necessity Guidelines Insulin PumpsMass General Brigham Health Plan2026-10-01
    Medical Necessity Guidelines: Continuous Glucose MonitorsMass General Brigham Health Plan2026-10-01
    Continuous Glucose MonitoringAmbetter Nevada2026-10-01
    Salivary Hormone TestingOscar Health2026-10-01
    Parathyroid Hormone, Phosphorus, Calcium, and Magnesium TestingOscar Health2026-10-01

    Related Codes

    HCPCS-A4206-STERILE-SYRINGE-1CC-NEEDLE

    HCPCS A4206: Syringe with Needle, 1 cc or Less, Sterile

    HCPCS-A4207-STERILE-2CC-SYRINGE-WITH-NEEDLE

    HCPCS Level II A4207: Syringe with Needle, Sterile 2 cc

    HCPCS-A4208-STERILE-3CC-SYRINGE-WITH-NEEDLE

    HCPCS Level II A4208: Syringe with Needle, Sterile 3 cc

    HCPCS-A4209-STERILE-SYRINGE-WITH-NEEDLE-5CC-OR-GREATER

    HCPCS Level II A4209: Syringe with Needle, Sterile 5 cc or Greater

    HCPCS-A4210-NEEDLE-FREE-INJECTION-DEVICE

    HCPCS Level II A4210: Needle-free Injection Device, Each

    HCPCS-A4211-SUPPLIES-SELF-ADMINISTERED-INJECTIONS

    HCPCS Level II A4211: Supplies for Self-Administered Injections

    HCPCS-A4212-NON-CORING-NEEDLE-STYLET-CATHETER-ACCESS-SUPPLY

    HCPCS Level II A4212: Non-coring Needle or Stylet with/without Catheter

    HCPCS-A4213-STERILE-SYRINGE-20CC-OR-GREATER

    HCPCS Level II A4213: Syringe, Sterile, 20 cc or Greater, Each

    HCPCS-A4215-STERILE-NEEDLE-SINGLE-EACH

    HCPCS Level II A4215: Needle, Sterile, Any Size

    HCPCS-A4216-STERILE-DILUENT-FLUSH-10ML

    HCPCS Level II A4216: Sterile Diluent/Flush, 10 ml

    Showing 1–10 of 633

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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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