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    OpenPayerBilling CodesComponents, Accessories and SuppliesHCPCS hcpcs-k1004-low-frequency-ultrasonic-diathermy-home-device
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    HCPCS Level II K1004: Low-Frequency Ultrasonic Diathermy for Home Use

    HCPCS Level II code K1004 describes a low-frequency ultrasonic diathermy treatment device for home use, representing durable medical equipment used to deliver therapeutic ultrasound for musculoskeletal pain and soft-tissue conditions; service type: durable medical equipment/therapeutic device; typical site of service: patient home for home health or self-administered therapy. Data not available in the input.

    For related coverage guidance, see recent payer policy updates: Hospital Beds Corporate Medical Policy, Patient Lifts, Home Non-Invasive Positive Pressure Ventilation (NIPPV) Devices for Respiratory Insufficiency and Failure.

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    Table of contents

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    Clinical & Coding Specifications

    Clinical Context

    A 64-year-old patient with chronic lateral epicondylitis and persistent forearm pain is discharged with a prescription for a low frequency ultrasonic diathermy treatment device for home use (K1004). The device is provided after an in-clinic evaluation by a physical medicine and rehabilitation physician who documents failure of conservative in-office therapies (home exercise program, manual therapy, and supervised physical therapy) and ongoing functional limitation. The clinical workflow: initial office visit with history, physical exam, and diagnosis; trial of in-office modalities; order and documentation for a durable medical equipment (DME) home-use ultrasonic diathermy device; completion of DME order form and supplier documentation; patient education on device use, safety precautions, and prescribed treatment parameters; delivery and setup by a DME supplier with return-to-provider follow-up to assess response and adjust the care plan. Typical duration of home use is specified in the order (for example, daily treatments for 4–6 weeks) with periodic clinical reassessment.

    Related CPT Codes

    CPT CodeDescriptionRelationship to This Procedure
    97110Therapeutic exercises to develop strength and endurance, range of motion and flexibilityOften provided during clinic PT sessions before or alongside home diathermy prescription to document conservative care.
    97010Application of a modality to 1 or more areas; hot or cold packsFrequently used in-clinic as an initial modality trial before prescribing a home ultrasonic diathermy device.
    97140Manual therapy techniques (e.g., mobilization/manipulation)Used in evaluation and conservative care prior to issuing the home-use diathermy device.
    99070Supplies and materials (for DME-related patient education or single-use items)Billed when additional supplies or educational materials accompany device delivery.
    99024Postoperative follow-up visit included in global serviceRelevant when device prescription is part of postoperative management and follow-up visits are billed per payer rules.

    Related Modifiers

    7 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…
    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…
    54Modifier ‑54 (“Surgical care only”) is appended to a CPT surgical procedure when the reporting surgeon performs the intraoperative (surgical) component but does not furnish the preoperative and/or…- Use modifier -54 when the reporting surgeon provided only the intraoperative (surgical) component of a procedure and preoperative and/or postoperative management has been or will be provided by…
    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…
    56Modifier ‑56 indicates the reporting provider furnished only the preoperative management for a surgical procedure and did not perform the intraoperative or postoperative care. It is used in…- Use Modifier -56 when a provider performs only the preoperative management in a split‑care situation (one physician manages preop care while a different physician performs the intraoperative…
    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…

    Related Provider Taxonomies

    8 rows

    Taxonomy Code
    207R00000X
    207L00000X
    208800000X
    207K00000X
    364S00000X
    2278H0200X
    246ZG0701X
    2083X0100X

    Related Payer Policy Updates

    Specialty: Durable Medical Equipment (DME)1 / 2

    10 rows

    PolicyPayerEffective Date
    Hospital Beds Corporate Medical Policybcbsvermont2027-01-01
    Patient Liftsuniverahealthcare2026-11-16
    Home Non-Invasive Positive Pressure Ventilation (NIPPV) Devices for Respiratory Insufficiency and Failureexcellus_health_plan_inc2026-10-15
    Positive Airway Pressure Devices for Pulmonary Disorders Continued RentalCareSource Georgia2026-10-01
    Bone Growth StimulatorsProvidence Health Plan2026-10-01
    Durable Medical Equipment (DME) Medical Necessity and CoverageMass General Brigham Health Plan2026-10-01
    Speech Generating DevicesMass General Brigham Health Plan2026-10-01
    Interferential Stimulation Devices (for home use)Moda Health2026-10-01
    Durable Medical Equipment (DME): Tumor Treating Fields (Alternating Electric Field Therapy) Medical GuidelineWPS Health Insurance2026-10-01
    Durable Medical Equipment (DME): Bone Growth Stimulators Medical GuidelineWPS Health Insurance2026-10-01

    Related Codes

    HCPCS-K1005-DISPOSABLE-BREAST-MILK-COLLECTION-STORAGE-BAG

    HCPCS K1005: Disposable Breast Milk Collection and Storage Bag

    HCPCS-K1006-HOME-SUCTION-PUMP-URINE-MANAGEMENT

    HCPCS Level II K1006: Home Suction Pump for External Urine Management

    HCPCS-K1007-POWERED-BILATERAL-LOWER-EXTREMITY-ORTHOSIS

    HCPCS K1007: Bilateral Powered Hip/Knee/Ankle/Foot Device

    HCPCS-K1009-SPEECH-VOLUME-MODULATION-SYSTEM

    HCPCS K1009: Speech Volume Modulation System

    HCPCS-K1010-INDWELLING-INTRAURETHRAL-DRAINAGE-DEVICE-REPLACEMENT

    HCPCS K1010: Indwelling Intraurethral Drainage Device with Valve, Replacement Only

    HCPCS-K1011-ACTIVATION-DEVICE-INTRAURETHRAL-DRAINAGE-VALVE-REPLACEMENT

    HCPCS K1011: Activation Device for Intraurethral Drainage Valve, Replacement Only

    HCPCS-K1012-CHARGER-BASE-INTRAURETHRAL-ACTIVATION-DEVICE-REPLACEMENT

    HCPCS Level II K1012: Charger and Base Station for Intraurethral Activation Device, Replacement Only

    HCPCS-K1013-ENEMA-TUBE-REPLACEMENT

    HCPCS Level II K1013: Enema Tube, Replacement Only

    HCPCS-K1014-ENDOSKELETAL-KNEE-SHIN-4-BAR-FLUID-CONTROL

    HCPCS K1014: Endoskeletal Knee-Shin System, Multiaxial, Fluid Swing/Stance Control

    HCPCS-K1015-FOOT-ADDUCTUS-POSITIONING-DEVICE-ADJUSTABLE

    HCPCS K1015: Foot Adductus Positioning Device, Adjustable

    Showing 1–10 of 32

    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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