CPT code 28406 denotes open reduction and internal fixation of a calcaneal (heel) fracture, a procedure that repositions and secures the largest tarsal bone using hardware such as pins and wires. This code matters nationally because calcaneal fractures often require specialized orthopedic surgical care, can result from high-energy trauma, and carry implications for hospital resource use, surgical scheduling, and postoperative rehabilitation. Key payers considered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of the clinical context for CPT code 28406, typical sites of service, and the procedural scope. The publication outlines payer coverage considerations, common billing modifiers associated with surgical services, and areas where coding clarity affects claims processing and reimbursement. It also summarizes expected clinical pathways following fixation, potential impacts on hospital and ambulatory surgical center workflows, and where stakeholders commonly encounter authorization or documentation questions. Data not available in the input is noted where detail is missing.