Summary & Overview
HCPCS Q4313: Dermabind fm, Per Square Centimeter
HCPCS Level II code Q4313 designates Dermabind fm billed per square centimeter as an add-on item in addition to a primary procedure. Nationally, this code matters for outpatient wound management and procedural coding because it captures the use of a topical closure adjunct that is billed separately from the core procedure, affecting clinical documentation, coding accuracy, and payer reimbursement processes.
Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find an explanation of the code's clinical role in wound care, typical sites of service where the product is used, and how the add-on nature of the code influences coding workflows. The publication also outlines common modifiers associated with add-on services, discusses typical billing considerations for per-unit (per square centimeter) items, and highlights areas where policy updates or payer-specific guidance may alter claim adjudication.
The report is intended for coding professionals, clinic administrators, and clinicians involved in procedural wound care who need clarity on when and how to bill for Dermabind fm as an adjunct product. Data not available in the input is noted where relevant.
Billing Code Overview
HCPCS Level II code Q4313 represents Dermabind fm, billed per square centimeter as an add-on item to be listed separately in addition to a primary procedure. The service is a topical or wound closure adjunct applied by a clinician to support wound management or closure, and the billing unit is per square centimeter.
Service Type: Wound care / topical closure adjunct
Typical Site of Service: Outpatient clinic, ambulatory surgical center, emergency department, or other facility where the primary procedure is performed
Data not available in the input.
Clinical & Coding Specifications
Clinical Context
A typical patient is an adult presenting to an ambulatory dermatology or minor procedure clinic for repair of a full-thickness skin wound after excision of a benign or malignant lesion, traumatic laceration repair, or after layered closure of a surgical site. The procedure uses a topical skin adhesive product billed as Q4313 (Dermabind FM) applied per square centimeter as an add-on to the primary wound repair or closure procedure. The clinical workflow begins with pre-procedure assessment and local anesthesia, performance of the primary procedure such as lesion excision or sutured repair, hemostasis and wound edge approximation, and then application of Q4313 to the closed wound surface over the indicated square centimeter area. Documentation includes indication for closure, measurements of the wound length and surface area, the primary procedure CPT code(s), amount (square centimeters) of adhesive applied, and any pertinent patient factors (anticoagulation, infection risk, or allergy). Typical sites of service are outpatient ambulatory procedure centers, dermatology offices, ambulatory surgery centers, and hospital outpatient departments. Typical patients range from healthy adults undergoing lesion excision to medically complex patients requiring wound reinforcement; Q4313 is billed in addition to the primary closure procedure and is not reported alone.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|