HCPCS Code A5120: Skin Barrier, Wipes or Swabs, Each

HCPCS code A5120 covers skin barrier wipes or swabs for ostomy care, ensuring protection, stronger adhesive seal, and Medicare billing compliance.

Use Code

## **What is HCPCS code A5120?** HCPCS code A5120 identifies "Skin barrier, wipes or swabs, each." Ostomy supplies are covered under the Medicare prosthetic device benefit and are billed under the DMEPOS program. Therefore, A5120 is a supply code (not a service or procedure), which impacts claim type and frequency limits. The skin barrier wipes or swabs are used to protect the skin surface surrounding an ostomy to maintain skin integrity and prevent irritation from adhesive products or bodily fluids. They function as a protective layer and are often paired with ostomy skin barriers that may include a skin barrier flange or own integral skin barrier. This item is individually coded because each wipe or swab is considered a separate supply, often used during a barrier and pouch change to help prepare the skin with a thin adhesive coating, sealant beneath ostomy appliances, or liquid barrier that supports a stronger adhesive seal. In some cases, wipes are used to enhance adherence when a separate adhesive is applied for added protection. According to CMS and AAPC, A5120 is important for billing purposes in medical claims where such supplies are necessary as part of ostomy management. When billing Medicare, it is essential to comply with relevant modifiers and documentation to substantiate medical necessity, such as the AU modifier when used with ostomy appliances. This code helps standardize claims for reimbursement related to specific durable medical equipment and skin barrier products outside of typical medical procedures, ensuring appropriate coverage and payment.

## **HCPCS Code A5120 documentation requirements** - CMS requires a Standard Written Order (SWO) for HCPCS code A5120. Once initial medical need is established, continued medical need is assumed as long as prosthetic device benefit criteria are met; quantities above usual maximums require justification. - Medical records must verify medical necessity, confirming the beneficiary has a surgically created stoma (colostomy, ileostomy, or urostomy) requiring skin barrier wipes. For quantities exceeding usual limits, documentation must explain the medical necessity for increased amounts. - The AU modifier is required when billing A5120 with ostomy supplies; claims without the AU modifier are rejected as missing information. - Refills need documented need and proper timing (no sooner than 30 days before supply ends). - Delivery documentation must show beneficiary or authorized representative acceptance. By following these tips, you can ensure adequate documentation and compliance with CMS policies for ostomy supply reimbursement.

## **HCPCS code A5120 billing requirements** HCPCS code A5120 billing requirements per CMS.gov and AAPC include: - When billed in conjunction with ostomy supplies, A5120 must include the modifier AU. Claims submitted without this modifier will be rejected as missing information by Medicare contractors. - A5120 is subject to durable medical equipment, prosthetics, orthotics, and supplies (DMEPOS) billing policies including adherence to specific local coverage determinations (LCDs) established by Medicare Administrative Contractors (MACs). These LCDs vary by MAC jurisdiction and can influence coverage, billing requirements, and quantity limits for ostomy supplies. - The DME supplier must monitor the quantity of supplies dispensed to avoid over-supply. Billing should comply with refill timelines so supplies are not bundled or denied due to early refill attempts—generally, delivery should not occur earlier than 10 days before the prior supply is exhausted. - A5120 is not payable separately if supplied during a covered home health care episode under consolidated billing rules; home health agencies supply ostomy items in that setting, and billing to DME MAC is disallowed. - No other modifiers beyond AU are required or accepted specifically for A5120 billing with ostomy supplies. This ensures proper Medicare reimbursement and compliance with program integrity rules.

## **Other relevant codes** Here are relevant HCPCS codes related to HCPCS A5120 along with accurate descriptions: - **A5121**: Skin barrier; solid, 6 x 6 or equivalent, each. - **A5122**: Skin barrier; solid, 8 x 8 or equivalent, each. - **A4456**: Adhesive remover, wipes, any type - **A4366**: A separate ostomy vent, any type, each - **A4367**: Ostomy belt, each - **A4394**: Ostomy deodorant, with or without lubricant, for use in ostomy pouch, per fluid ounce - **A4419**: Ostomy pouch, closed; for use on barrier with non-locking flange, with filter (2-piece), each - **A4387**: Ostomy pouch, closed, with barrier attached, with built-in convexity (1-piece), each - **A4388**: Ostomy pouch, drainable, with extended wear barrier attached, (1-piece), each - **A4391**: Ostomy pouch, urinary, with extended wear barrier attached (1-piece), each - **A4408**: Ostomy skin barrier greater than 4 x 4 inches, with flange (solid, flexible or accordion), extended wear, with built-in convexity, each - **A5083**: Continent device, stoma absorptive cover for continent stoma

Frequently asked questions

HCPCS code A5120 is defined as a "Skin barrier, wipes or swabs, each," used in ostomy care to protect the skin around the stoma from irritation and damage caused by adhesives and bodily fluids.

Medicare covers HCPCS code A5120 (skin barrier wipes or swabs) as medically necessary ostomy supplies. Coverage requires a valid prescription and supplier enrollment in Medicare. Medicare Part B covers HCPCS code A5120 when billed as a durable medical equipment (DME) benefit, typically paying 80% of the approved amount after the Part B deductible, with the patient responsible for the remaining 20% coinsurance. Usual maximum quantities apply; amounts above the usual maximum require medical-record justification.

Documentation requirements for HCPCS code A5120 include a standard written order with patient details, item description (HCPCS code or narrative), quantity, practitioner’s name and signature, and order date. Medical records must verify the need for ostomy care due to a surgically created stoma. The AU modifier is required on claims. Delivery and refill documentation are necessary for compliance. Quantity limits and medical necessity must be documented, especially for amounts exceeding usual limits.