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    v1.0.31
    OpenPayerBilling CodesDurable medical equipment (DME) Medicare administrative contractors (MACs)HCPCS hcpcs-k0746-absorptive-wound-dressing-home-npwt-pad-over-48-sq-in
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    HCPCS K0746: Absorptive Wound Dressing for Home Portable Suction Pump

    HCPCS Level II code K0746 designates an absorptive wound dressing intended for use with a home-model portable suction pump, specified as a pad larger than 48 square inches; this represents a durable medical supply for negative-pressure wound therapy (NPWT) dressings used in the home setting and is billed as a supply item for outpatient or home health wound management.

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

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    Clinical & Coding Specifications

    Clinical Context

    A typical patient is an adult with a chronic or complex wound (for example, a large sacral pressure ulcer, postoperative abdominal wound with high exudate, or diabetic foot ulcer) being managed at home with negative pressure wound therapy (NPWT) using a portable/home suction pump. The clinician (wound care nurse or home health provider) assesses the wound in the outpatient clinic or during a home visit, measures wound size (greater than 48 square inches for the pad), documents wound characteristics and prior treatments, and determines that an absorptive wound dressing compatible with a portable suction pump is required. The device is supplied as part of home-based NPWT; training is provided to the patient or caregiver on pump operation, dressing changes, skin protection, and signs of complications. Billing uses HCPCS Level II code K0746 for the absorptive dressing (pad size >48 sq in). Typical sites of service include the patient’s residence (home health), outpatient wound clinic, or skilled nursing facility when the portable/home NPWT system is used.

    Related CPT Codes

    CPT CodeDescriptionRelationship to This Procedure
    97605Debridement, open wound, non-selective (eg, wet-to-moist dressings, enzymatic, abrasion), first 20 sq cm or lessMay be performed prior to NPWT dressing placement for wound bed preparation (smaller debridement services).
    97606Debridement, open wound, non-selective, each additional 20 sq cm (list separately in addition to code for primary service)Used for larger wounds when additional debridement area is required before applying NPWT dressings.
    97607Application of a topical wound dressing, negative pressure wound therapy (e.g., vacuum-assisted drainage), including provision of device(s), suction pump, and dressings; first 48 sq inRelated to NPWT services; K0746 specifically bills the larger pad (>48 sq in) supply while 97607 covers first 48 sq in NPWT application.
    97608Application of a topical wound dressing, negative pressure wound therapy; each additional 48 sq in (list separately in addition to code for primary service)Used when NPWT application exceeds the first 48 sq in; pairs clinically with larger dressings such as the pad represented by K0746.
    11042Debridement, subcutaneous tissue (includes epidermis and dermis), first 20 sq cm or lessSurgical debridement codes that may be documented when operative debridement precedes NPWT supply application.

    Related Modifiers

    6 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…
    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…
    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
    207Q00000X
    207L00000X
    363A00000X
    207P00000X
    207R00000X
    2471R0002X
    163WM0705X
    171M00000X

    Related Payer Policy Updates

    Specialty: Durable Medical Equipment (DME)1 / 3

    10 rows

    PolicyPayerEffective Date
    Sleep Position Trainerregence2027-01-01
    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
    Tonic Motor Activation (TOMAC) for Restless Legs Syndromeregence2026-11-01
    Functional Neuromuscular Electrical Stimulationregence2026-11-01
    Noninvasive Ventilators in the Home Settingregence2026-11-01
    Medical Car SeatsCareSource2026-11-01

    Related Codes

    HCPCS-K0001-STANDARD-WHEELCHAIR-DURABLE-MEDICAL-EQUIPMENT

    HCPCS K0001: Standard Wheelchair

    HCPCS-K0002-STANDARD-HEMI-LOW-SEAT-WHEELCHAIR

    HCPCS K0002: Standard Hemi (Low Seat) Wheelchair

    HCPCS-K0003-LIGHTWEIGHT-WHEELCHAIR

    HCPCS K0003: Lightweight Wheelchair

    HCPCS-K0004-HIGH-STRENGTH-LIGHTWEIGHT-WHEELCHAIR

    HCPCS K0004: High Strength, Lightweight Wheelchair

    HCPCS-K0005-ULTRALIGHTWEIGHT-WHEELCHAIR

    HCPCS Level II K0005: Ultralightweight Wheelchair

    HCPCS-K0006-HEAVY-DUTY-WHEELCHAIR

    HCPCS Level II K0006: Heavy Duty Wheelchair

    HCPCS-K0007-EXTRA-HEAVY-DUTY-WHEELCHAIR

    HCPCS Level II K0007: Extra Heavy Duty Wheelchair

    HCPCS-K0008-CUSTOM-MANUAL-WHEELCHAIR

    HCPCS K0008: Custom Manual Wheelchair/Base

    HCPCS-K0009-OTHER-MANUAL-WHEELCHAIR-BASE

    HCPCS K0009: Other Manual Wheelchair/Base

    HCPCS-K0010-STANDARD-WEIGHT-FRAME-POWER-WHEELCHAIR

    HCPCS K0010: Standard Weight Frame Motorized/Power Wheelchair

    Showing 1–10 of 135

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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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