Summary & Overview
HCPCS Q4322: Caregraft, Per Square Centimeter
HCPCS Level II code Q4322 designates Caregraft billed per square centimeter as an add-on supply to be listed in addition to the primary procedure. This code covers graft material used in reconstructive and wound care procedures where a per-area product is applied to support tissue repair. Nationally, precise coding for graft products matters for accurate claims submission, supply cost accounting, and clinical documentation tied to procedural interventions.
Key payers in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of the code's clinical application, typical sites of service (operating room, ambulatory surgical center, inpatient procedural settings), and the contexts in which the code is billed as an add-on. The publication provides benchmarks and payer coverage notes where available, highlights policy considerations relevant to add-on supply codes, and summarizes practical billing elements such as common modifiers and documentation needs. The content is designed for billing professionals, clinicians involved in procedural care, and policy analysts seeking a national perspective on use and administrative handling of graft product supply billing.
Billing Code Overview
HCPCS Level II code Q4322 describes Caregraft billed per square centimeter and is designated as an add-on, list separately in addition to primary procedure. The code represents billing for a graft product provided by clinical teams to augment or replace tissue during reconstructive or wound care procedures.
Service Type: Graft/product supply for reconstructive or wound care procedures
Typical Site of Service: Operating room, ambulatory surgical center, or inpatient procedural setting
Data not available in the input.
Clinical & Coding Specifications
Clinical Context
A typical patient is an adult with a full-thickness skin defect after traumatic degloving, tumor excision, chronic nonhealing ulceration, or failed prior grafting who requires application of a bioengineered skin substitute product billed as Q4322 per square centimeter as an add-on to a primary wound procedure. The clinical workflow usually includes preoperative assessment and local wound bed preparation (debridement, control of infection, hemostasis), measurement of the graft area in square centimeters, application of the Caregraft material to the prepared wound, and fixation with staples, sutures, or dressings. Post-application care includes immobilization of the grafted area as indicated, dressing changes, monitoring for graft take and infection, and follow-up visits for assessment and potential revision procedures. Typical sites of service are hospital outpatient departments, ambulatory surgery centers, and specialized wound care clinics. Patient comorbidities commonly affecting the procedure include diabetes mellitus, peripheral vascular disease, tobacco use, and immunosuppression, which influence wound healing and graft survival.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
00 | No modifier — standard billing | Use when no reportable modifier applies to the add-on service. |