Summary & Overview
HCPCS Q4341: Simplimax, Per Square Centimeter
HCPCS Level II code Q4341 denotes Simplimax billed per square centimeter as an add-on supply reported separately in addition to a primary procedure. As an area-based topical or wound-care product code, Q4341 matters nationally for facilities and clinicians who provide adjunctive topical treatments during procedures or wound management because it clarifies reporting when supplies are billed in addition to core services. Proper coding affects claim processing, bundling determinations, and visibility of supply utilization.
Key payers covered in this summary include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find an overview of the code’s clinical context, common billing modifiers and service settings, and what typical inclusion as an add-on supply implies for claim submission. The publication also outlines benchmarks and policy considerations relevant to reimbursement and billing audits, plus practical notes on documentation expectations for area-based supply reporting.
This summary offers a concise reference for billing managers, compliance teams, and clinicians to understand when Q4341 applies, how it is positioned relative to a primary procedure, and the payer landscape that commonly adjudicates such add-on supply codes.
Billing Code Overview
HCPCS Level II code Q4341 describes Simplimax, per square centimeter, billed as an add-on supply and reported separately in addition to the primary procedure. The code indicates a topical or skin-area product provided by a clinician or facility and is intended to be quantified by area (square centimeter).
Service type: Supply — topical or wound care product documented per square centimeter
Typical site of service: Outpatient clinic, ambulatory surgical center, wound care center, or other procedural settings where an add-on topical product is applied in conjunction with a primary procedure
Clinical & Coding Specifications
Clinical Context
A 68-year-old patient with a chronic, non-healing full-thickness lower leg wound undergoes debridement and application of a dermal regenerative matrix. The facility bills the primary wound procedure (for example, placement of a graft or application of a skin substitute) and adds Q4341 for additional surface area of Simplimax charged per square centimeter. Typical workflow: wound assessment and measurement by a wound care clinician; documentation of wound dimensions and indication for advanced wound product; informed consent and ordering of the product; intra-procedural recording of the exact square centimeters of Simplimax used; billing the primary procedure CPT code for graft/skin substitute application with Q4341 units appended to reflect the product area. Typical site of service is an ambulatory surgical center, outpatient hospital clinic, wound care center, or physician office during an advanced wound care procedure. Typical patient presentation includes diabetic foot ulcer, venous stasis ulcer, pressure ulcer, or surgical wound dehiscence requiring a dermal adjunct.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
00 | No modifier (placeholder used by some systems) | Rarely used; submitted only per payer/system when no other modifier applies. |