Summary & Overview
HCPCS Level II Q4426: Dermabind topical wound closure, per sq cm
HCPCS Level II code Q4426 denotes Dermabind tl + or Dermabind tl x, billed per square centimeter as an add-on item appended to a primary procedure. This code captures surface-area–based billing for a topical wound closure or adhesive product used to supplement procedural wound management. Nationally, accurate use of this code matters for standardized reporting of material-based wound closure costs and for claims adjudication when topical devices are billed separately from primary procedures.
Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of the code’s clinical role, guidance on typical sites of service, and what to expect in payer coverage patterns. The publication outlines benchmark considerations for per-square-centimeter billing, common billing contexts where Q4426 is used as an add-on supply, and implications for claim submission and documentation.
The summary presents national context rather than state-specific policy. It highlights areas where providers and billing staff should confirm payer-specific rules, whether payers allow separate payment for topical closure products, and how to report Q4426 alongside primary procedure codes. Data not available in the input will be identified in the detailed sections.
Billing Code Overview
HCPCS Level II code Q4426 describes Dermabind tl + or Dermabind tl x, billed per square centimeter as an add-on item to be listed separately in addition to a primary procedure. The description indicates this code represents a topical wound closure or adhesive product supplied and billed by surface area.
Service Type: Topical wound closure product (per square centimeter)
Typical Site of Service: Outpatient settings where wound closure or wound care procedures occur, including ambulatory surgical centers, hospital outpatient departments, and clinic-based procedural rooms.
Clinical & Coding Specifications
Clinical Context
A typical patient is an adult presenting to an outpatient dermatology or wound care clinic with a small-to-moderate full-thickness skin defect or surgical wound requiring topical tissue adhesive reinforcement. The clinician performs a primary repair such as suturing or stapling for wound edge approximation and then applies a topical adhesive dressing product billed as an add-on per square centimeter, Q4426, to protect the closure, reduce infection risk, and provide a barrier for exudate. Typical workflow: history and exam, local anesthesia as needed, irrigation and debridement of wound edges, layered closure with sutures or staples, hemostasis, measurement of area treated in square centimeters, application of the dermabond-like adhesive product over the repaired area, dressing and patient aftercare instructions. Common settings include outpatient dermatology clinics, ambulatory surgical centers, primary care procedure rooms, and wound care centers.
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 visit is performed on the same day as the primary procedure and the adhesive application Q4426 is reported as an add-on. |