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    v1.0.28
    OpenPayerBilling CodesMedical And Surgical SuppliesHCPCS hcpcs-a6534-thigh-length-gradient-compression-stocking-30-40-mmhg
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    HCPCS Level II A6534: Gradient Thigh-Length Compression Stocking, 30–40 mmHg

    HCPCS Level II code A6534 describes a single gradient thigh-length compression stocking with 30–40 mmHg compression, intended as a durable medical supply for management of venous insufficiency, edema, lymphedema, post-thrombotic syndrome, or for prophylactic use; the service type is compression garment / durable medical equipment and the typical site of service is outpatient or home use where stockings are measured, fitted, and provided.

    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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    Clinical & Coding Specifications

    Clinical Context

    A typical patient is an adult with chronic venous insufficiency, post‑thrombotic syndrome, or lymphedema who is prescribed thigh‑length gradient compression stockings A6534 (30–40 mmHg) for daily ambulatory use to reduce edema and venous stasis. The clinical workflow begins with a vascular medicine, wound care, primary care, or lymphedema specialist evaluation documenting the indication, measurement of calf and thigh circumference and leg length for proper fit, and patient education on donning, doffing, wear schedule, and care. The provider documents medical necessity, size, laterality (left LT or right RT if applicable), and whether the stocking is custom or off‑the‑shelf. Durable medical equipment (DME) supplier dispenses one stocking per limb (each) with billing under HCPCS Level II code A6534. Follow‑up visits assess fit, skin integrity, symptom improvement, and replacement needs; orders are renewed per payer policy when documented need continues.

    Related CPT Codes

    CPT CodeDescriptionRelationship to This Procedure
    99213Office or other outpatient visit for the evaluation and management of an established patient, typically 15 minutesCommonly performed before ordering A6534 to document medical necessity and sizing
    99406Smoking and tobacco use cessation counseling visit, intermediateOften part of comprehensive care but not directly tied to stocking supply
    29581Application of multi‑layer compression system, lower limbPerformed by clinicians managing complex venous ulcers; may accompany prescription of compression stockings
    93970Duplex scan of extremity veins (unilateral or bilateral)Used to evaluate venous insufficiency or deep vein thrombosis prior to or in conjunction with prescribing compression
    29540Compression wrap application, lower extremityAlternative or adjunct to stockings for edema management

    Related Modifiers

    5 rows

    ModifierDescriptionWhen to Use
    59Modifier 59 indicates a distinct procedural service when two procedures that are not normally billed together are clinically and procedurally separate. The CPT definition (as reiterated by CMS)…- Use modifier -59 to report a distinct procedural service when documentation supports that the procedure reported is not normally billed together with another service on the same day because of a…
    93Modifier 93 denotes that a billed service was delivered synchronously via audio-only telecommunications (real-time telephone or other audio-only system). The AMA added modifier 93 in CPT Appendix A…- When to use: Apply modifier -93 when a synchronous, real-time, two-way patient–provider encounter is conducted entirely via audio-only (telephone or other real-time interactive audio-only…
    96Modifier 96 is appended to CPT codes to indicate that a service or procedure was provided for habilitative purposes — i.e., to help a patient learn, maintain, or improve skills and functioning for…- Use modifier -96 when a procedure or service that could be either habilitative or rehabilitative is provided specifically for habilitative purposes — i.e., to help a patient learn, maintain, or…
    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…
    24Modifier 24 denotes an unrelated evaluation and management (E/M) service performed by the same physician or qualified healthcare professional during a postoperative global period. Per CPT guidance,…- Use modifier 24 when you report an evaluation and management (E/M) service performed by the same physician or same-specialty group during a procedure’s postoperative global period that is unrelated…

    Related Provider Taxonomies

    8 rows

    Taxonomy CodeSpecialtyNotes
    207RH0000XHematology (Internal Medicine) PhysicianAn internist with additional training who specializes in diseases of the blood, spleen and lymph. This specialist treats conditions such as anemia, cl…
    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…
    208VP0000XPain Medicine PhysicianPain Medicine is a primary medical specialty based on a distinct body of knowledge and a well-defined scope of clinical practice that is founded on sc…
    3336C0003XCommunity/Retail PharmacyA pharmacy where pharmacists store, prepare, and dispense medicinal preparations and/or prescriptions for a local patient population in accordance wit…
    163WN1003XNutrition Support Registered NurseNursing Service Providers · Registered Nurse
    374K00000XReligious Nonmedical PractitionerA religious nonmedical practitioner offers spiritually-based care. Services may be rendered in an office, home, or care facility or by phone, email, …
    324500000XSubstance Abuse Rehabilitation FacilityA facility or distinct part of a facility that provides a 24 hr therapeutically planned living and rehabilitative intervention environment for the tre…
    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

    24 rows

    ICD-10-CM CodeDescription
    E11.51Type 2 diabetes mellitus with diabetic peripheral angiopathy without gangrene
    E11.621Type 2 diabetes mellitus with foot ulcer
    E78.5Hyperlipidemia, unspecified
    I80.10Phlebitis and thrombophlebitis of unspecified femoral vein
    I80.11Phlebitis and thrombophlebitis of right femoral vein
    I83.001Varicose veins of unspecified lower extremity with ulcer of thigh
    I83.002Varicose veins of unspecified lower extremity with ulcer of calf
    I83.10Varicose veins of unspecified lower extremity with inflammation
    I83.11Varicose veins of right lower extremity with inflammation
    I87.2Venous insufficiency (chronic) (peripheral)

    Showing 1–10 of 24

    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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