Summary & Overview
HCPCS Q4266: Neostim Membrane, Per Square Centimeter
HCPCS Level II code Q4266 represents the Neostim membrane billed per square centimeter as an add-on supply used in conjunction with a primary surgical or procedural service. Nationally, add-on device and supply codes like Q4266 are important for capturing incremental material costs and ensuring transparency in procedural billing. This code matters for hospital systems, ambulatory surgery centers, and payers that need to reconcile device costs with bundled payment arrangements.
Key payers addressed include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of the code’s clinical context, typical sites of service, and where it fits within service lines. The publication also summarizes common modifier usage and payer considerations where available, benchmarks for utilization patterns, and any recent policy or coverage updates that affect add-on device reporting.
This summary equips billing professionals, revenue cycle managers, and clinicians with the essential facts about HCPCS Level II code Q4266: what it denotes, why it is billed separately, and the payer landscape relevant to reimbursement and claims adjudication. Data not available in the input is noted where applicable.
Billing Code Overview
HCPCS Level II code Q4266 describes a Neostim membrane billed per square centimeter as an add-on item to be reported in addition to a primary procedure. The description indicates this is a device/supply line item used when a Neostim membrane is applied during a procedure.
-
Service type: Device/supply add-on
-
Typical site of service: Operative and procedure settings where membrane placement occurs, such as hospital operating rooms or ambulatory surgical centers
Clinical & Coding Specifications
Clinical Context
A typical patient is a 58-year-old adult with a chronic, non-healing lower extremity wound following peripheral vascular disease and prior debridement. The treating clinician selects a topical biologic membrane product Q4266 (neostim membrane, billed per square centimeter as an add-on) to augment wound bed coverage after appropriate wound preparation. The clinical workflow includes: initial wound assessment and documentation of wound size, depth, vascular status, and infection signs; sharp debridement or enzymatic debridement as indicated; control of infection with topical or systemic therapy when present; measurement and photographic documentation of the wound area in square centimeters; selection and application of the neostim membrane sized to cover the wound bed; securement of the membrane with appropriate dressings; and follow-up visits to assess graft/membrane take, wound contraction, and need for reapplication. The neostim membrane is billed in addition to the primary surgical or wound procedure (for example, debridement or grafting) and is typically provided in outpatient wound centers, ambulatory surgery centers, hospital outpatient departments, or specialty clinics. Care teams commonly include wound care specialists, plastic surgeons, vascular surgeons, podiatrists, and advanced practice clinicians who document the medical necessity, wound measurements, and concurrent primary procedure codes when reporting Q4266.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|