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Products · Compression & wraps

Unna boots: zinc oxide and calamine

Impregnated compression bandages applied in the office and left in place between visits. PCSS carries 4-inch Unna boots in zinc oxide and calamine formulations.

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Illustration of Unna boot bandage rollsIllustration, not the exact product

At a glance

  • 2 product lines, 2 sizes
  • Medicare: Weekly. Covered for venous leg ulcers that are qualifying wounds
  • Net-30 terms, no minimums to start

What we carry

Lines, sizes and suggested HCPCS.

Impregnated bandages applied and left in place between visits.

Sign in to the wholesale portal to view pricing and order supplies for your practice. Patient-direct supply uses a separate route described in How to order.

  • Unna boot, zinc

    Zinc oxide impregnated compression bandage.

    Unna boot, zinc: sizes and suggested HCPCS
    SizeSuggested HCPCS
    4 in.A6456

  • Unna boot, calamine

    Calamine impregnated compression bandage.

    Unna boot, calamine: sizes and suggested HCPCS
    SizeSuggested HCPCS
    4 in.A6456

Suggested HCPCS codes are categories based on product type and pad size, for reference only — not a coding determination. Confirm final coding with your billing staff.

DME Supplier Manual, Appendix A (HCPCS descriptors)(opens in a new tab)

Often chosen for

Unna boots: typical uses

  • Lower-extremity wounds managed with compression
  • Weekly in-office application
  • A dressing that stays in place between visits

General product information, not clinical advice. Choose dressings on clinical judgment and the patient's plan of care.

Compare families in the dressing selector

Medicare at a glance

Typical HCPCS category
A6456 (zinc paste impregnated bandage, per yard)
Change frequency (LCD L33831)
Weekly. Covered for venous leg ulcers that are qualifying wounds.
Coverage
Decided claim by claim. Surgical dressings need a qualifying wound, a documented evaluation and a current order; dressings applied as part of a billed professional service are included in that service.
LCD L33831(opens in a new tab)Policy Article A54563(opens in a new tab)
Work out a monthly quantityBuild the written order
Documentation checklistWound dressing HCPCS quick reference

Medicare notes

What applies to compression & wraps.

Unna boots change weekly

Medicare's surgical dressing LCD covers zinc paste (Unna boot) bandages for venous leg ulcers that are qualifying wounds — surgically created or modified, or debrided — with a weekly change frequency.

LCD L33831(opens in a new tab)

Medicare details checked against CMS sources on October 6, 2026. Not billing, coding or legal advice.

Questions

Unna boots: common questions

Net-30 termsNo minimums to startStock orders in the wholesale portal
Zinc or calamine?

Both are 4-inch impregnated compression bandages; one uses zinc oxide, the other calamine. Choose on clinical judgment and patient tolerance.

Which HCPCS code applies?

Zinc paste impregnated bandages are coded A6456, per yard. Confirm final coding with your billing staff.

How often under Medicare?

Weekly. LCD L33831 covers zinc paste bandages for venous leg ulcers that are qualifying wounds, with a weekly change frequency.

More from Pacific Coast Surgical Solutions

Mix these on the same order.

All compression & wraps

Wholesale portal

Wholesale pricing and stock orders.

Sign in to view wholesale pricing and order supplies for your practice. New customers create an account and sign the Net-30 agreement online; Aubrey countersigns to open ordering.

Help: (803) 422-2710

Your practice’s wholesale account

View your catalog pricing, save business and ship-to details, and order once Aubrey has countersigned your agreement. Patient-direct orders follow the separate Equipia route described in How to order.

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How to order