Summary & Overview
HCPCS Q4427: Dermabind Topical Wound Adhesive, Per Square Centimeter
HCPCS Level II code Q4427 designates the application of Dermabind topical wound-closure products (Dermabind dl n / dl + / dl x) billed per square centimeter as an add-on to a primary procedure. As an add-on HCPCS code, Q4427 captures surface-area–based use of adhesive or topical closure materials that supplement primary surgical or wound management services. Nationally, accurate reporting of such add-on codes affects procedure-level accounting, supply tracking, and payer reimbursement decisions for wound care and minor surgical closures.
Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of clinical context for topical adhesive use, typical sites of service where Q4427 is billed, and the role of per-square-centimeter measurement for billing. The publication also outlines expected benchmarks and payer coverage themes, common documentation points that support add-on billing, and how Q4427 interfaces with primary procedure coding. Where specific payer policies, modifiers, or related taxonomies are required for claim adjudication, the report will indicate that information when available. Data not available in the input will be noted as such.
Billing Code Overview
HCPCS Level II code Q4427 describes Dermabind dl n or Dermabind dl + or Dermabind dl x, billed per square centimeter as an add-on service to be listed separately in addition to a primary procedure. This code represents the application of topical or adhesive wound closure products (Dermabind variants) measured and billed by surface area.
Service type: Wound closure product application / topical adhesive per square centimeter
Typical site of service: Outpatient surgical settings, ambulatory surgery centers, emergency departments, and clinic procedure rooms
Data not available in the input.
Clinical & Coding Specifications
Clinical Context
A typical patient is an adult presenting to an outpatient dermatology clinic or urgent care with a full-thickness or partial-thickness skin defect after excision of a benign or malignant lesion, traumatic laceration, or debridement of an infected wound. The clinician performs the primary procedure (for example, biopsy, excision, or wound debridement) and determines that topical closure enhancement using a liquid adhesive dressing such as Dermabind is appropriate to protect the wound and promote epithelialization.
The clinical workflow: the patient is prepared with local anesthesia as needed; hemostasis is achieved; the primary procedure (excision, debridement, or repair) is completed; wound edges are approximated or left to heal by secondary intention depending on the clinical decision; the provider measures the surface area of the wound in square centimeters and documents the application of Q4427 as an add-on, listing the square centimeters used. Nursing documents product lot number and expiration, wound appearance, and patient instructions for wound care. Billing includes the primary procedure CPT and the add-on HCPCS Level II code Q4427 with the appropriate units reflecting square centimeters applied.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
25 | Significant, separately identifiable evaluation and management service by the same physician on the day of a procedure |