Summary & Overview
HCPCS Q4412: Choriofix, Per Square Centimeter
HCPCS Level II code Q4412 represents the add-on billing for Choriofix, a topical biomaterial product billed per square centimeter and reported in addition to a primary procedure. As an add-on supply code, Q4412 matters nationally because it captures the incremental resource use and product cost associated with biomaterial application during surgical or procedural care. Accurate use affects facility and professional billing, payment allocation, and clinical cost tracking.
Key payers commonly considered in analyses include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find an overview of clinical context for Choriofix use, typical sites of service, common coding considerations for add-on product reporting, and national benchmarking context where available. The publication outlines typical reporting practices, potential documentation needs tied to product quantity (per square centimeter), and areas where payer policy can influence coverage and payment.
This summary is intended for billing managers, revenue cycle professionals, and clinical leaders seeking a clear national-level description of HCPCS Level II code Q4412, its role in claims, and the types of information funders evaluate for reimbursement and clinical accounting.
Billing Code Overview
HCPCS Level II code Q4412 describes Choriofix, billed per square centimeter and is designated as an add-on, list separately in addition to primary procedure. This code represents a product-based supplies or biomaterial application used as an adjunct in procedures where Choriofix is applied to tissue surfaces.
Service Type: Adjunct biomaterial application / surgical supply
Typical Site of Service: Operative or procedural settings (hospital operating room, ambulatory surgical center, or procedure suite)
Clinical & Coding Specifications
Clinical Context
Choriofix (Q4412) is an add-on topical agent applied per square centimeter to placental bed or choriodefect areas to promote hemostasis and tissue sealing during obstetric and gynecologic procedures. A typical patient scenario is a 32-year-old woman undergoing a cesarean delivery complicated by focal uterine bleeding at the placental implantation site. After delivery of the fetus and placenta and standard surgical hemostasis maneuvers, the surgeon applies Q4412 to a 4 cm2 area of the placental bed as an adjunct to achieve local hemostasis and reduce oozing. The clinical workflow includes informed consent for adjunctive hemostatic agents, documentation of the treated square centimeters, application of the product in the sterile field, recording Q4412 as an add-on in the operative note with the exact area treated, and billing the add-on code in addition to the primary procedure code for cesarean delivery. Typical site of service is an operating room in an inpatient or outpatient hospital setting during obstetric or gynecologic surgery. Common clinical indications include persistent localized bleeding after standard hemostatic measures during cesarean section, myomectomy, or placental bed repair where a topical adjunct is clinically indicated.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
25 |