Summary & Overview
CPT 21139: Forehead Contouring with Frontal Sinus Wall Incision
CPT code 21139 denotes forehead contouring that includes reshaping the forehead and incising the frontal sinus wall to correct facial abnormalities or improve appearance. This craniofacial reconstructive procedure is relevant nationally for plastic surgery, oral and maxillofacial surgery, and otolaryngology practices because it carries specialized operative risk, site-of-service considerations, and payer coverage variability. Major national payers commonly involved in coverage decisions include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare.
Readers will find a concise overview of the procedure’s clinical intent, typical sites of service, and the payer landscape. The publication outlines benchmarks on utilization and reimbursement patterns where available, highlights recent policy and coding clarifications that affect billing and prior authorization, and summarizes clinical context that affects medical necessity determinations. It also points to related procedure groupings and coding considerations relevant for surgical planning and claims submission. Data not available in the input is noted where applicable.
Billing Code Overview
CPT code 21139 describes a surgical procedure in which the provider reshapes the forehead to correct a facial abnormality or improve appearance. The procedure involves contouring the forehead and making an incision through the underlying wall of the frontal sinus cavity.
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Service type: Forehead contouring/reconstructive forehead surgery
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Typical site of service: Hospital operating room or ambulatory surgery center for craniofacial/oral and maxillofacial surgery
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Clinical & Coding Specifications
Clinical Context
A 42-year-old female presents to a facial plastic surgeon with a long-standing frontal bossing and asymmetric forehead contour following prior trauma and prior endoscopic sinus surgery. She reports dissatisfaction with forehead prominence and prefers correction for cosmetic and functional concerns (interference with brow symmetry and eyelid closure). After consultation and preoperative evaluation including CT of the facial bones to assess the frontal sinus anatomy and rule out active sinus disease, the patient is scheduled for forehead contouring and reshaping.
The clinical workflow includes preoperative history and physical, informed consent addressing risks (bleeding, infection, cerebrospinal fluid leak, need for frontal sinus obliteration or cranialization), preop imaging review, perioperative marking, general anesthesia, a bicoronal or pretrichial incision, subgaleal/subperiosteal dissection, contouring of the outer table and incision of the frontal sinus anterior wall as needed for reduction or cranialization, possible sinus mucosal management, hemostasis, drain placement if indicated, layered closure, and postoperative monitoring in an ambulatory surgical center or hospital. Typical postoperative care includes pain control, head elevation, wound checks, short course antibiotics if frontal sinus entered, activity restrictions, and follow-up visits to assess healing and cosmetic outcome.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
00 | Unspecified — do not use for billing |