Summary & Overview
HCPCS Q4428: Dermabind Skin Closure Product, Per Square Centimeter
HCPCS Level II code Q4428 represents Dermabind skin closure products billed per square centimeter as an add-on to a primary surgical closure procedure. It identifies use of Dermabind SL N, Dermabind SL +, or Dermabind SL X formulations as topical adjuncts to support wound edges during surgical closure. Nationally, products captured by this code affect device billing for operative and outpatient surgical care where topical closure agents supplement sutures or adhesives.
Key payers considered in this coverage context include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Payer policies determine coverage, allowed units, and whether billing as an add-on per area is accepted; these variances influence reimbursement and compliance for facilities and clinicians.
Readers will learn the clinical and billing context of Q4428, typical sites of service, and which payers commonly adjudicate claims for Dermabind products. The publication also provides benchmarks and policy updates where available, explains common billing scenarios for add-on per-square-centimeter devices, and outlines clinical contexts in which such topical closure adjuncts are used. Data not available in the input will be noted where applicable.
Billing Code Overview
HCPCS Level II code Q4428 describes Dermabind skin closure product billed per square centimeter as an add-on, list separately in addition to primary procedure. The code covers Dermabind SL N, Dermabind SL +, or Dermabind SL X formulations charged by surface area.
Service type: Topical/surgical skin closure adjunct used to support wound closure during surgical procedures.
Typical site of service: Operative and ambulatory surgical settings, including hospital operating rooms and outpatient surgical centers where a primary wound closure procedure is performed.
Clinical & Coding Specifications
Clinical Context
A typical patient is a middle-aged adult who presents to an outpatient dermatology or urgent care clinic with a small-to-moderate superficial skin laceration, surgical incision, or traumatic wound requiring external adhesive wound-closure adjuncts. The clinical workflow begins with wound assessment, irrigation, and, if needed, simple layered closure using primary suture or staples. Q4428 Dermabind products are applied as an add-on per square centimeter to reinforce epidermal apposition, reduce tension across the wound, protect the repair site, and potentially improve cosmesis. The clinician documents wound size in square centimeters, indication for adhesive reinforcement, product type (e.g., Dermabind SL N/SL+/SLX), and that the application is adjunctive to the primary procedure. Typical settings include outpatient dermatology clinics, ambulatory surgery centers, urgent care centers, and emergency departments where minor procedural wound care is performed.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
25 | Significant, separately identifiable evaluation and management service by the same physician on the same day of the procedure | Use when a distinct E/M is performed and documented on the same day as the wound repair and Dermabind application |
59 | Distinct procedural service | Use when the Dermabind application is separately identifiable from the primary procedure and support distinct procedural coding when payer requires a distinctness modifier