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    v1.0.28
    OpenPayerBilling CodesTemporary CodesHCPCS hcpcs-q4293-access-per-square-centimeter-addon
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    HCPCS Level II Q4293: Access Device, Per Square Centimeter (Add-on)

    Medicare pays $133 on average nationally for this procedure.

    HCPCS Level II code Q4293 describes an access device billed per square centimeter as an add-on service to a primary procedure; the service type is access device application or placement and the typical site of service is the operating room or procedure suite where the primary procedure occurs.

    For related coverage guidance, see recent payer policy updates: B-Hemolytic Streptococcus Testing, Human Immunodeficiency Virus (HIV) — Coverage Criteria for Testing and Resistance Assays, Hepatitis Testing (A, B, C, D) Coverage Criteria.

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    Clinical & Coding Specifications

    Clinical Context

    A typical patient is an adult or pediatric individual undergoing surgical placement of an implantable access device or revision of an existing device where area-based billing for device access is required. The add-on code Q4293 is billed per square centimeter of access device surface area in addition to a primary implantation or removal procedure. A realistic scenario: a 58-year-old with recurrent colorectal cancer requires placement of a long-term subcutaneous infusion port for chemotherapy. The interventional surgeon performs port pocket creation and subcutaneous tunnel; the facility bills the primary CPT for port placement and bills Q4293 as an add-on for the measured port access surface area. Typical clinical workflow includes preoperative evaluation, informed consent, device measurement, sterile implantation under local or general anesthesia, device testing, and documentation of the square-centimeter measurement in the operative report and charge ticket for accurate Q4293 billing.

    Related CPT Codes

    CPT CodeDescriptionRelationship to This Procedure
    36561Insertion of tunneled centrally inserted central venous catheter, with subcutaneous port or pump, age 5 years or olderOften the primary procedure to which Q4293 is appended for the port access surface area billing.
    36556Removal of tunneled central venous catheter, without subcutaneous portPerformed when catheter removal is needed; Q4293 may not apply unless an access area measurement is required for a port component.
    36568Replacement, complete, of implanted catheter, open, without subcutaneous portMay be performed when device revision is required; Q4293 can be used in conjunction when measuring and billing access area.
    36571Replacement, complete, of an implanted catheter with subcutaneous port or pump, including catheter repositioning, age 5 years or olderPerformed for port exchange; Q4293 billed as add-on for measured access area.
    76937Ultrasound guidance for vascular access requiring ultrasound evaluation and documentation, per each vesselOften used during placement of central access devices to guide vessel cannulation prior to port placement where Q4293 is appended to the primary implantation CPT.

    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…
    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…
    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…

    Related Provider Taxonomies

    8 rows

    Taxonomy CodeSpecialtyNotes
    208100000XPhysical Medicine & Rehabilitation PhysicianPhysical medicine and rehabilitation, also referred to as rehabilitation medicine, is the medical specialty concerned with diagnosing, evaluating, and…
    2086S0102XSurgical Critical Care PhysicianA surgeon with expertise in the management of the critically ill and postoperative patient, particularly the trauma victim, who specializes in critica…
    207P00000XEmergency Medicine PhysicianAn emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospit…
    207K00000XAllergy & Immunology PhysicianAn allergist-immunologist is trained in evaluation, physical and laboratory diagnosis, and management of disorders involving the immune system. Select…
    207L00000XAnesthesiology PhysicianAn anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an opera…
    207QB0505XDiabetology (Internal Medicine) PhysicianAn internist who specializes in diagnosis and management of type 1, type 2, gestational, and atypical diabetes; diabetes complications; hospital manag…
    207RX0202XMedical Oncology PhysicianAn internist who specializes in the diagnosis and treatment of all types of cancer and other benign and malignant tumors. This specialist decides on a…
    2086P0122XPhysician Nutrition Specialist (Surgery)A physician who specializes in the diagnosis and treatment of primary nutritional diseases (e.g., undernutrition, overnutrition, and genetic or acquir…

    Related ICD-10-CM Codes

    25 rows

    ICD-10-CM CodeDescription
    A49.02Methicillin resistant Staphylococcus aureus infection, unspecified site
    E10.621Type 1 diabetes mellitus with foot ulcer
    E11.22Type 2 diabetes mellitus with diabetic chronic kidney disease
    E11.621Type 2 diabetes mellitus with foot ulcer
    G57.61Lesion of plantar nerve, right lower limb
    G57.91Unspecified mononeuropathy of right lower limb
    I70.219Atherosclerosis of native arteries of extremities with intermittent claudication, unspecified extremity
    I83.219Varicose veins of right lower extremity with both ulcer of unspecified site and inflammation
    I83.811Varicose veins of right lower extremity with pain
    I87.2Venous insufficiency (chronic) (peripheral)

    Showing 1–10 of 25

    Related Payer Policy Updates

    Specialty: Infectious Disease1 / 3

    10 rows

    PolicyPayerEffective Date
    B-Hemolytic Streptococcus TestingOscar Health2026-10-01
    Human Immunodeficiency Virus (HIV) — Coverage Criteria for Testing and Resistance AssaysOscar Health2026-10-01
    Hepatitis Testing (A, B, C, D) Coverage CriteriaOscar Health2026-10-01
    Lyme Disease Testing Coverage CriteriaOscar Health2026-10-01
    Pathogen Panel TestingOscar Health2026-10-01
    Diagnostic Testing of Common Sexually Transmitted InfectionsOscar Health2026-10-01
    Testing for Diagnosis of Active or Latent TuberculosisOscar Health2026-10-01
    Testing for Vector-Borne InfectionsOscar Health2026-10-01
    Coronavirus Testing in the Outpatient SettingOscar Health2026-10-01
    Human Immunodeficiency Virus (HIV)blue cross blue shield - louisiana2026-09-15

    Related Codes

    HCPCS-LEVEL-II-Q4139-INJECTABLE-AMNIOMATRIX-BIODMATRIX-1-CC

    HCPCS Q4139: Amniomatrix or Biodmatrix, Injectable, 1 cc

    HCPCS-LEVEL-II-Q4256-AREA-BASED-PROCEDURAL-ADD-ON-PER-SQ-CM

    HCPCS Q4256: MLG-complete Skin Graft Material, Per Sq Cm

    HCPCS-LEVEL-II-Q5132-ADALIMUMAB-AFZB-ABRILADA-10MG-INJECTION

    HCPCS Level II Q5132: Injection, adalimumab-afzb (Abrilada), 10 mg

    HCPCS-Q0035-CARDIOKYMOGRAPHY-CARDIAC-MOTION-RECORDING

    HCPCS Level II Q0035: Cardiokymography

    HCPCS-Q0081-INFUSION-THERAPY-NON-CHEMOTHERAPEUTIC-PER-VISIT

    HCPCS Level II Q0081: Infusion Therapy, Non‑Chemotherapeutic, Per Visit

    HCPCS-Q0083-CHEMOTHERAPY-NON-INFUSION-ADMINISTRATION

    HCPCS Q0083: Chemotherapy Administration, Non-Infusion Methods

    HCPCS-Q0084-CHEMOTHERAPY-INFUSION-ADMINISTRATION-PER-VISIT

    HCPCS Q0084: Chemotherapy Infusion Administration, Per Visit

    HCPCS-Q0085-CHEMOTHERAPY-INFUSION-PLUS-OTHER-TECHNIQUES-PER-VISIT

    HCPCS Q0085: Chemotherapy Infusion Plus Other Technique(s), Per Visit

    HCPCS-Q0091-PAP-SMEAR-SPECIMEN-COLLECTION-TRANSPORT

    HCPCS Q0091: Screening Papanicolaou Smear Collection and Transport

    HCPCS-Q0092-PORTABLE-XRAY-EQUIPMENT-SETUP

    HCPCS Q0092: Set-up Portable X-ray Equipment

    Showing 1–10 of 629

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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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