Summary & Overview
HCPCS Q4286: Nudyn SL/Nudyn SLW, Topical Product per sq cm
HCPCS Level II code Q4286 designates Nudyn SL or Nudyn SLW, billed per square centimeter as an add-on item in addition to a primary procedure. This code matters nationally because it standardizes reporting and billing for surface-applied products measured by area, affecting reimbursement accuracy, clinical documentation, and claims processing for outpatient procedures that require topical adjuncts.
Key payers in the analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of the code's clinical context and use cases, typical sites of service, and common billing modifiers associated with add-on, per-area product reporting. The publication covers benchmarks for payer coverage policies, expected billing practice patterns, and implications for documentation workflows. It also summarizes payer approaches to pricing and prior authorization where applicable. Practical guidance is presented on mapping this HCPCS Level II code to service lines and integrating it into claim submissions.
Data not available in the input is explicitly noted where specific payer policy details, associated taxonomies, ICD-10 diagnoses, and related codes are missing.
Billing Code Overview
HCPCS Level II code Q4286 describes Nudyn SL or Nudyn SLW, billed per square centimeter as an add-on item to be listed separately in addition to a primary procedure. This code denotes a topical or surface-applied product measured and charged by surface area rather than by unit or dose.
Service Type: Topical/Surface product for application by a clinician, billed as an add-on service
Typical Site of Service: Outpatient procedural settings, ambulatory surgery centers, and clinic treatment rooms where topical or surface-applied products are used in conjunction with a primary procedure
Data not available in the input.
Clinical & Coding Specifications
Clinical Context
A typical patient is an adult with a localized area of chronic neuropathic pain or soft-tissue pain treated with a topically applied neurolytic/analgesic agent measured and billed per square centimeter. The patient presents to an outpatient ambulatory surgery center, physician office procedure room, or pain clinic. The clinician (commonly an interventional pain specialist, dermatologist, or physiatrist) documents the indication, treatment area dimensions, and informed consent. After topical preparation and, if needed, local anesthesia or procedural sedation, the clinician applies the product (measured in square centimeters) to the targeted lesion or skin area. The service is recorded as an add-on to a primary procedure that establishes the treatment site (for example, debridement, removal of lesion, or other primary wound care or procedural code). Post-application monitoring is performed per facility protocols and documented in the chart.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
00 | Standard federal payer modifier (no special billing instructions) | Use when no other modifier applies and billing requires a baseline modifier field. |
22 | Unusual procedural services |