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    OpenPayerBilling CodesComponents, Accessories and SuppliesHCPCS hcpcs-k1009-speech-volume-modulation-system
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    HCPCS K1009: Speech Volume Modulation System

    HCPCS Level II code K1009 describes a speech volume modulation system — a device that modulates or amplifies voice volume, including all components and accessories, intended to assist patients with voice control or communication impairments; this is a durable medical equipment service typically provided as home-use DME or supplied in outpatient specialty clinics and speech therapy settings.

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    Clinical & Coding Specifications

    Clinical Context

    A typical adult patient with hypophonia following ischemic stroke is evaluated by a speech-language pathologist and a rehabilitation physician for persistent reduced vocal loudness that limits communication in daily activities. After assessment documents reduced respiratory support, poor vocal fold adduction, and decreased projection, the team recommends fitting a speech volume modulation system to augment vocal loudness. The clinical workflow includes: initial multidisciplinary evaluation (neurology/PM&R and SLP), trial of device settings in the clinic to optimize amplification and safety, verification of auditory feedback and comfort, education on device use and maintenance, delivery of the device (including all components and accessories), and follow-up visits for tuning, troubleshooting, and documentation of functional benefit for activities of daily living.

    Related CPT Codes

    CPT CodeDescriptionRelationship to This Procedure
    92507Treatment of speech, language, voice, communication, and/or auditory processing disorder; individualUsed for speech-language pathology therapy sessions addressing voice volume and training with the device.
    92601Evaluation of speech fluency (e.g., stuttering), initialMay be used for comprehensive speech evaluations that include voice assessment prior to device provision when applicable.
    92626Evaluation of auditory rehabilitation status; first hourUsed if auditory feedback systems or hearing-related components are evaluated as part of device fitting.
    94620Pulmonary function testing, spirometryMay be used when pulmonary support for voice (respiratory measures) is assessed prior to device selection.
    99070Supplies and materials, nonphysician services, provided by the physician over and above those usually included with the office visitUsed for consumable accessories or additional materials supplied with the device if payer requires.

    Related Modifiers

    8 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…
    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
    235Z00000X
    207R00000X
    2084P0800X
    208000000X
    207LA0401X
    364SX0200X
    163WA2000X
    207ND0101X

    Related Codes

    HCPCS-K1004-LOW-FREQUENCY-ULTRASONIC-DIATHERMY-HOME-DEVICE

    HCPCS Level II K1004: Low-Frequency Ultrasonic Diathermy for Home Use

    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-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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