CPT code 21122 represents a multi-segment genioplasty procedure in which the surgeon incises the mandible in two or more places and removes or repositions wedges of bone to correct chin asymmetry. The code captures surgical management aimed primarily at cosmetic chin reshaping, with important functional applications such as alleviation of anatomical contributors to obstructive sleep apnea. Nationally, genioplasty is performed in both inpatient and outpatient surgical settings and involves specialties in maxillofacial and reconstructive facial surgery.

Key payers included in this analysis are Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of clinical context and service setting, common payer coverage considerations, and benchmarks where available. The publication outlines coding specificity for genioplasty, typical sites of service, and contextualizes the procedure within facial reconstructive and functional care pathways. It also highlights common clinical indications, utilization considerations, and the types of documentation and clinical justification payers commonly expect. Data not available in the input will be explicitly noted in relevant sections.