Summary & Overview
HCPCS Q4385: Apollo ft per square centimeter (add-on)
HCPCS Level II code Q4385 denotes the itemized add-on product “Apollo ft” billed per square centimeter, intended to be reported in addition to a separate primary procedure. As an add-on HCPCS supply code, Q4385 matters nationally because it affects how providers report and bill for adjunct materials or products used during procedures, which can influence payment accuracy and clinical documentation practices.
Key payers included in this overview are Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare and Medicare. Readers will find a concise national perspective on the code’s clinical context and billing purpose, typical sites of service, and the kinds of benchmarks and policy topics that commonly accompany add-on HCPCS supply codes.
This publication summarizes the clinical scenario in which Q4385 is used, describes implications for service lines that use per-square-centimeter supplies, and outlines what stakeholders typically examine when evaluating reimbursement and coding compliance for add-on products. Content includes typical payer coverage considerations, common modifier usage patterns (listed separately), and areas where policy updates or coverage guidance can affect billing practices. Data not available in the input is noted where applicable; the focus remains on explaining the code, its intended billing role, and the practical contexts in which it appears nationally.
Billing Code Overview
HCPCS Level II code Q4385 is defined as Apollo ft, per square centimeter (add-on, list separately in addition to primary procedure). This code represents an add-on supply or product item billed in addition to a primary procedure, described on a per-square-centimeter basis.
Service type: Supply/Product add-on
Typical site of service: Clinical procedure setting or outpatient facility where the primary procedure is performed
Clinical & Coding Specifications
Clinical Context
A typical patient is an adult undergoing a skin resurfacing or localized dermatologic laser treatment that requires a proprietary topical or adjunctive product billed per square centimeter as an add-on. The patient presents to an outpatient dermatology clinic or ambulatory surgical center for treatment of focal actinic keratoses, superficial basal cell carcinoma treatment adjunct, or cosmetic resurfacing of photodamaged skin. The clinical workflow begins with evaluation and lesion mapping, marking the treatment area in square centimeters, informed consent and pre-procedure photography, application of local anesthesia if indicated, and administration of the primary procedure (for example, laser ablation or excision). Following the primary procedure, the provider or trained staff applies the Q4385 product (Apollo ft) to the measured treatment area; the charge is submitted as an add-on per square centimeter in addition to the primary procedure code. Post-procedure wound care instructions and follow-up are provided in the clinic or ambulatory surgical center. Typical sites of service include outpatient dermatology clinics, ambulatory surgical centers, and inpatient hospital outpatient departments when the primary procedure is performed there.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
00 | No modifier (standard reporting) | Use when no special circumstances apply and the service is reported in the usual manner |