Summary & Overview
HCPCS Q4368: Amchothick, Per Square Centimeter (Add-on)
HCPCS Level II code Q4368 represents a per-square-centimeter add-on charge for "Amchothick," used in conjunction with a primary procedure to bill for additional topical or soft-tissue augmentation materials or applications. As an add-on HCPCS Level II code, Q4368 is billed separately from the primary procedure and is relevant across surgical and dermatologic procedural settings where area-based adjuncts are applied.
Key payers discussed include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise national overview of the code's clinical context, common billing considerations, and the types of benchmarks and policy elements typically examined for add-on, area-based HCPCS Level II codes. The publication covers how Q4368 is positioned relative to primary procedures, expected sites of service, and the practical implications for claims processing when area-based adjuncts are provided.
This summary provides an orientation to the code's purpose and utility, notes the primary commercial and public payers relevant for national billing considerations, and outlines what readers can expect in the full publication: benchmark rates and utilization patterns (where available), payer coverage considerations, and administrative coding context. Data not available in the input will be flagged within the detailed sections.
Billing Code Overview
HCPCS Level II code Q4368 describes Amchothick, billed per square centimeter and is designated as an add-on code to be listed separately in addition to a primary procedure. The service type is adjunct soft-tissue augmentation or topical/dermal adjunct application measured by area, reflecting billing for additional material or treatment applied per square centimeter. The typical site of service is procedural settings where a primary surgical or dermatologic procedure is performed, such as an operating room, ambulatory surgery center, or outpatient procedural suite.
Data not available in the input.
Clinical & Coding Specifications
Clinical Context
A patient with a localized dermatologic lesion (for example, a thickened scar, hypertrophic tissue, or localized soft-tissue mass) undergoes a procedure during which an amchothick product is applied or implanted per square centimeter as an adjunct to the primary surgical or dermatologic procedure. Typical workflow: preoperative evaluation documents indication and lesion dimensions; consent includes discussion of add-on material used; the primary procedure (for example, excision, debridement, or reconstructive procedure) is performed; the clinician measures the area treated in square centimeters and documents quantity of Q4368 units used; intraoperative and postoperative notes document placement, hemostasis, and any additional maneuvers. Typical site of service is an ambulatory surgical center or hospital outpatient department; the service is billed as an add-on (list separately) in conjunction with the primary procedure code for excision, scar revision, or soft-tissue reconstruction. A realistic patient scenario: a 45-year-old patient with a symptomatic hypertrophic scar of the forearm undergoes scar revision and the surgeon applies amchothick material over a 12 cm2 area to augment soft-tissue contour; the primary procedure CPT for scar revision is reported and Q4368 is reported in addition, with documentation of the treated area and units billed.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
00 |