Summary & Overview
HCPCS Q4419: Biolab Membrane Wrap Lite Flow, Per sq cm
HCPCS Level II code Q4419 represents a Biolab membrane wrap lite flow device billed per square centimeter as an add-on supply to a primary surgical or wound procedure. Nationally, this code matters because it standardizes reporting for a specialized adjunct used in tissue repair and wound management, enabling clearer supply tracking and consistent billing when membrane wraps are employed during operative care. The code supports clinical documentation and payer adjudication by separating the cost of the membrane product from the primary procedure.
Key payers covered include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find an overview of the code's clinical context, typical sites of service, and the role of the code as an add-on supply. The publication provides benchmarks for usage and billing practices, summarizes relevant policy or coverage considerations where available, and highlights coding nuances for accurate claim submission. Data not available in the input for modifiers, associated taxonomies, ICD-10 diagnoses, and related codes will be noted where applicable.
Billing Code Overview
HCPCS Level II code Q4419 describes a Biolab membrane wrap lite flow, billed per square centimeter. This item is an add-on supply intended to be listed separately in addition to a primary procedure when used as a membrane wrap product. The service type is a surgical/operative adjunct supply used to support tissue repair or wound management. The typical site of service is an operating room or procedural suite where the primary surgical or wound procedure is performed.
Data not available in the input.
Clinical & Coding Specifications
Clinical Context
A typical patient is an adult with a chronic nonhealing lower-extremity wound (for example, a diabetic foot ulcer or venous stasis ulcer) who has failed conservative wound care including dressings, offloading, debridement, and topical therapies. The wound care team (wound care nurse, podiatrist or plastic surgeon) evaluates the wound in an outpatient wound clinic or ambulatory surgery center. After sharp or enzymatic debridement to remove necrotic tissue and achieve a clean wound bed, the provider applies a biologic membrane overlay product billed with Q4419 (Biolab membrane wrap lite flow, per square centimeter) as an add-on to the primary procedure to protect the wound, promote moist wound healing, and support tissue regeneration. The procedure workflow includes wound assessment, measurement and photographic documentation, debridement as indicated, application of the membrane product to the measured wound area, securement with secondary dressings, and patient education on offloading and follow-up. Typical sites of service are outpatient wound care clinics, ambulatory surgical centers, and hospital outpatient departments.
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 | Use when a distinct E/M visit is documented on the same day as the primary wound procedure to which is appended |