Summary & Overview
CPT 21172: Extensive Facial Skeletal Reconstruction with Autologous Bone Graft
CPT code 21172 denotes extensive reconstructive surgery of the facial skeleton using the patient’s own bone graft material, including forehead reshaping. This code captures high-complexity craniofacial reconstruction performed to correct severe deformities from trauma, disease, or congenital anomalies. Nationally, these procedures are clinically significant due to their complexity, resource intensity, and implications for surgical specialization and facility utilization.
Key payers addressed include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of clinical context, typical sites of service, and the payment and coding considerations relevant to high-complexity facial reconstruction. The publication summarizes benchmark payment relationships, common billing practices, and policy considerations that affect coverage and prior authorization for major reconstructive craniofacial surgery.
The report provides clinical context for when 21172 is used, outlines typical care pathways and facility settings, and highlights areas where payers and providers often focus review (operative complexity, graft source, and inpatient versus outpatient setting). Data not available in the input is noted where applicable.
Billing Code Overview
CPT code 21172 describes an extensive facial skeletal reconstruction using autologous bone graft harvested from another site in the patient’s body. The procedure includes reshaping of the forehead and comprehensive reconstruction of facial bones to correct severe deformities from trauma, disease, or congenital conditions.
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Service type: Major reconstructive facial surgery involving autogenous bone grafting
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Typical site of service: Inpatient or outpatient hospital surgical setting, or ambulatory surgical center for complex reconstructive facial procedures
Clinical & Coding Specifications
Clinical Context
A 34-year-old female presents with severe craniofacial deformity following a high-impact motor vehicle collision 10 months prior. She has persistent frontal bone loss, orbital rim discontinuity, and contour irregularity of the forehead with associated functional issues (enophthalmos and forehead asymmetry) and psychosocial distress. After multidisciplinary evaluation by craniofacial surgery, otolaryngology, and ophthalmology, the patient is scheduled for extensive facial bony reconstruction including forehead reshaping with autologous bone graft harvested from the patient’s iliac crest. Preoperative planning includes CT 3D reconstruction, informed consent discussing graft harvest risks, blood management, and anesthesia evaluation. Intraoperative workflow includes general endotracheal anesthesia, open exposure of the frontal bone and involved facial skeleton, contouring and fixation of bone graft material, rigid internal fixation as needed, hemostasis, and layered closure. Postoperative workflow includes monitoring in PACU, wound and graft viability checks, pain management, antibiotics, discharge planning with outpatient follow-up for wound checks and radiographic assessment, and staged revisions if indicated.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
22 | Increased procedural services | Use when the work required is substantially greater than typically required due to complexity of reconstruction. |