Summary & Overview
HCPCS Q4167: Truskin, Per Square Centimeter (Add-On, Topical Dermal Product)
HCPCS Level II code Q4167 designates billing for Truskin charged per square centimeter as an add-on item to a primary procedure. As an add-on product code, Q4167 matters for national billing practices because it affects per-procedure supply costs, coding completeness, and claim adjudication for topical biologic or dermal products used in wound care and dermatologic procedures. Clear reporting of add-on products ensures correct pricing and clinical documentation alignment.
Key payers addressed include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find an overview of how the code is defined, typical sites of service where the product is used, common modifiers that appear on related claims, and payer coverage considerations. The publication includes benchmarking context and policy updates relevant to add-on HCPCS products, plus practical notes on clinical documentation and coding placement on the claim.
This summary provides a concise reference for coding staff, revenue cycle professionals, and clinical leaders seeking to understand where Q4167 fits in procedural billing and claim workflows for dermatologic and wound-care interventions. Data not available in the input is noted where applicable.
Billing Code Overview
HCPCS Level II code Q4167 represents Truskin billed per square centimeter as an add-on, list separately in addition to primary procedure. This code is used to report the product when Truskin is applied and billed by surface area.
Service Type: Topical biologic/dermal product applied by surface area
Typical Site of Service: Outpatient clinics, ambulatory surgical centers, physician offices, and wound care centers
Data not available in the input.
Clinical & Coding Specifications
Clinical Context
A patient with a localized dermatologic defect or wound requiring application of a cellular-derived skin substitute is evaluated in an outpatient dermatology or wound care clinic. The patient is typically an adult with a chronic non-healing ulcer (for example, a lower-extremity diabetic foot ulcer or venous stasis ulcer) or a surgical wound with insufficient tissue for primary closure. After history, exam, and wound bed preparation (debridement, control of infection, optimization of perfusion), the clinician measures the wound area in square centimeters and documents indications, prior conservative treatments, vascular status, and comorbidities. The procedure consists of application of the product billed as Q4167 per square centimeter as an add-on supply to the primary wound procedure. Typical workflow steps include wound cleansing and hemostasis, application of the Truskin-derived biologic percm2 product to the defect, securing with appropriate dressings, patient/caregiver instruction, and scheduling follow-up for graft take assessment and dressing changes. Procedural documentation includes product lot numbers, number of square centimeters applied, and rationale for use as an adjunct to standard wound care.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
22 | Increased procedural services | Use when the work required to prepare or place the product is substantially greater than typically required. |