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    v1.0.28
    OpenPayerBilling CodesMedical And Surgical SuppliesHCPCS hcpcs-a6224-sterile-impregnated-gauze-pad-large-no-adhesive
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    HCPCS Level II A6224: Sterile Impregnated Gauze Pad >48 sq. in.

    HCPCS Level II code A6224 describes a sterile gauze dressing pad, impregnated with a substance other than water, normal saline, or hydrogel, with pad size greater than 48 square inches and without an adhesive border; this code is used for supply billing of sterile large impregnated gauze dressings, typically supplied for wound care procedures and dressings in outpatient wound care clinics, hospital inpatient or outpatient settings, and home health care where large non-adhesive sterile pads are applied.

    For related coverage guidance, see recent payer policy updates: Salivary Hormone Testing, Bone Turnover Markers Testing, Parathyroid Hormone, Phosphorus, Calcium, and Magnesium Testing.

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    Table of contents

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    Clinical & Coding Specifications

    Clinical Context

    A typical patient is an adult recovering from a large surgical debridement of an infected pressure ulcer on the sacrum performed in an inpatient or outpatient surgical setting. The wound bed requires a large, sterile, impregnated gauze dressing (pad size >48 sq. in.) without an adhesive border to provide antimicrobial or emollient contact with the wound, absorb exudate, and protect surrounding skin.

    The clinical workflow: the surgeon or wound care nurse selects A6224 when a single sterile impregnated gauze pad of the specified size is applied at the time of the procedure or dressing change. Documentation includes wound size and indication for impregnated dressing (e.g., antimicrobial, petrolatum-based), dressing size and quantity, procedure or dressing change notes, and provider performing the application. The product may be supplied intraoperatively, in the post-anesthesia care unit, in a hospital ward, outpatient clinic, or skilled nursing facility. Billing captures the item A6224 as a supply/dressing charge tied to the encounter and linked to the related wound care or surgical CPT and the patient diagnosis codes in the medical record.

    Related CPT Codes

    CPT CodeDescriptionRelationship to This Procedure
    11042Debridement, subcutaneous tissue, first 20 sq cm or lessOften performed prior to application of a large impregnated dressing during wound care
    11043Debridement, muscle and/or fascia, first 20 sq cm or lessUsed for deeper debridement preceding placement of an impregnated dressing
    15734Skin graft, to trunk, arms, legs; intermediate or large sizeDressing A6224 may be used to cover donor or recipient sites after grafting
    97605Negative pressure wound therapy; simple dressing change, initialLarge impregnated gauze may be used in conjunction with or prior to advanced wound therapies
    99070Supplies and materials (non‑covered item or service)Use when supplies such as specialized impregnated gauze are billed separately in some outpatient settings

    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…
    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…
    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 CodeSpecialtyNotes
    163W00000XRegistered Nurse(1) A registered nurse is a person qualified by graduation from an accredited nursing school (depending upon schooling, a registered nurse may receive…
    174400000XSpecialistAn individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond…
    164W00000XLicensed Practical NurseAn individual with post-high school vocational training and practical experience in the provision of nursing care at a level less than that required f…
    207Q00000XFamily Medicine PhysicianFamily Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadt…
    207SC0300XClinical Cytogenetics PhysicianA clinical cytogeneticist demonstrates competence in providing laboratory diagnostic and clinical interpretive services dealing with cellular componen…
    364SP0811XChronically Ill Psychiatric/Mental Health Clinical Nurse SpecialistPhysician Assistants & Advanced Practice Nursing Providers · Clinical Nurse Specialist
    202D00000XIntegrative Medicine PhysicianA physician who specializes in the treatment of the whole person through prevention and treatment based on medical evidence. Integrative medicine cons…
    3336L0003XLong Term Care PharmacyA pharmacy that dispenses medicinal preparations delivered to patients residing within an intermediate or skilled nursing facility, including intermed…

    Related ICD-10-CM Codes

    23 rows

    ICD-10-CM CodeDescription
    A09Infectious gastroenteritis and colitis, unspecified
    E10.621Type 1 diabetes mellitus with foot ulcer
    E11.621Type 2 diabetes mellitus with foot ulcer
    E11.65Type 2 diabetes mellitus with hyperglycemia
    I50.9Heart failure, unspecified
    I83.013Varicose veins of right lower extremity with ulcer of ankle
    I83.11Varicose veins of right lower extremity with inflammation
    L03.115Cellulitis of right lower limb
    L03.116Cellulitis of left lower limb
    L30.9Dermatitis, unspecified

    Showing 1–10 of 23

    Related Payer Policy Updates

    Specialty: Endocrinology1 / 3

    5 rows

    PolicyPayerEffective Date
    Salivary Hormone TestingOscar Health2026-10-01
    Bone Turnover Markers TestingOscar Health2026-10-01
    Parathyroid Hormone, Phosphorus, Calcium, and Magnesium TestingOscar Health2026-10-01
    Testosterone — Coverage Criteria for Measurement and MonitoringOscar Health2026-10-01
    Thyroid Disease 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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