Summary & Overview
CPT 21344: Repair of Complicated Frontal Sinus Fracture, Coronal Approach
CPT code 21344 denotes open surgical repair of complicated fractures of the frontal sinus (below the brow ridge) via coronal scalp incisions and is used for trauma cases such as blunt force or crush injuries. This code is relevant nationally for trauma centers, craniofacial and maxillofacial surgeons, and hospital surgical departments because it identifies a high-complexity reconstructive procedure with implications for operating room resources, surgical staffing, and post-operative care pathways. Key payers commonly engaged with this service include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare.
Readers will find a concise clinical and billing overview, plus context on where the procedure is typically delivered (hospital operating rooms, inpatient or outpatient surgical settings based on clinical severity). The publication covers common claim modifiers and payer considerations used with high-complexity craniofacial trauma operations, benchmark and reimbursement context where available, and clinical factors that affect coding and utilization. The content is intended to support coding accuracy, hospital billing teams, and policy stakeholders who manage reimbursement policy and contract language for complex facial trauma repair services.
Billing Code Overview
CPT code 21344 describes surgical repair of a complicated fracture of the frontal sinus bones below the brow ridge performed through one or more incisions in the corona (crown) of the head. The procedure is used to address damage caused by blunt force trauma or crush injuries and involves open surgical access to reconstruct and stabilize the frontal sinus region.
Service Type: Open surgical repair of complicated frontal sinus fracture
Typical Site of Service: Hospital operating room (inpatient or outpatient surgical setting depending on injury severity and clinical decision-making).
Clinical & Coding Specifications
Clinical Context
A 34-year-old male presents to the emergency department after a high-velocity motor vehicle collision with facial impact to the forehead. He reports severe frontal head pain, periorbital ecchymosis, and clear rhinorrhea. CT imaging demonstrates a comminuted fracture of the frontal sinus involving the anterior table and inferior margin beneath the brow ridge with displacement and disruption of the sinus drainage pathway. Neurosurgery and facial trauma teams evaluate the patient; operative repair is scheduled to restore frontal sinus contour, address cerebrospinal fluid leak risk, and protect intracranial structures.
The clinical workflow includes preoperative evaluation (airway assessment, imaging review, consent), operative planning with possible endoscopic assistance, administration of general anesthesia in an operating room, a coronal/crown incision to access and reduce the frontal sinus fracture (including debridement, fixation with plates/screws or mesh, and possible sinus obliteration or cranialization if indicated), intraoperative documentation of repair and materials used, and postoperative monitoring in PACU with follow-up for wound care and imaging to assess alignment and sinus function. Typical site of service is an acute care hospital operating room with inpatient or observation admission depending on injury severity.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
11 | Normally scheduled service | Use when the procedure is performed as planned (non-emergent, typical circumstances). |