Summary & Overview
HCPCS A4362: Skin Barrier, Solid 4x4
HCPCS Level II code A4362 denotes a single-use skin barrier product (solid, 4 x 4 or equivalent) used to protect peri-wound skin and interface between wounds and dressings. Nationally, this supply code matters for clinicians, home health agencies, wound care programs, and payers because skin barriers are common components of wound management, skin protection regimens, and ostomy care workflows. Reimbursement and coverage policies affect access to appropriate supplies and the total cost of outpatient wound care.
Key payers discussed include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of what this code represents, typical sites of service, and the payer landscape addressed in the publication. The report provides benchmarks for utilization and coverage approaches, summarizes relevant policy updates affecting supply reimbursement, and situates the product in clinical context for wound and skin protection protocols. The publication also highlights common billing considerations and documentation themes relevant to durable medical equipment and outpatient wound care supply lines.
Data not available in the input for associated taxonomies, specific ICD-10 pairings, related codes, and detailed payer-specific coverage policies.
Billing Code Overview
HCPCS Level II code A4362 represents a skin barrier product described as solid, 4 x 4 or equivalent; each. This item is a single-use wound care supply designed to protect peri-wound skin and provide a barrier between drainage or adhesives and intact skin.
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Service type: Wound care supply / skin protection product
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Typical site of service: Outpatient clinics, physician offices, wound care centers, home health settings, and durable medical equipment supply settings where wound care products are provided or applied.
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Clinical & Coding Specifications
Clinical Context
A typical patient is an adult or pediatric individual with a healed or healing peristomal skin area who requires a protective skin barrier pad to protect intact skin from effluent, adhesives, or moisture. Example: a 68-year-old male with a permanent colostomy presents to a wound and ostomy clinic for routine supply resupply after recent peristomal irritation from adhesive residue. The clinician (wound ostomy nurse or ostomy-trained home health clinician) assesses the stoma and peristomal skin, determines that the skin is intact but at risk for irritation, and applies a single-use solid skin barrier (approximately 4 x 4 or equivalent) under the ostomy wafer or as a protective pad. The skin barrier product A4362 is supplied and documented in the medical record and on the claim for durable medical equipment or supply reimbursement. Typical clinical workflow: assessment of stoma and skin, selection of appropriate barrier pad size and type, application and patient education on use and frequency of replacement, documentation of the product code A4362, quantity furnished, and relevant diagnosis code(s) on the claim.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
00 | No modifier — default | Use when no other modifier applies to the supply. |