CPT code 27590 denotes complete removal of the leg at any point on the femur with closure of the remaining muscle and skin layers — commonly described as an above-knee or femoral-level amputation. This code captures a high-acuity, major surgical procedure with significant clinical, functional, and cost implications nationwide. It is relevant to surgical services, inpatient care, rehabilitation planning, prosthetic provision, and long-term disability considerations.

Key payers included in the national perspective are Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise clinical context for the procedure, an outline of typical sites of service and service type, and guidance on what to expect in payer coverage analyses. The publication covers common claim modifiers associated with major surgical procedures (provided in source data), benchmarking considerations, and operational implications for hospitals and surgical practices.

This overview helps clinicians, coding staff, and revenue-cycle professionals identify where CPT code 27590 fits in surgical service lines, anticipate inpatient resource use, and align documentation with coding requirements. Data not available in the input is noted where applicable; the focus remains on national relevance rather than state-specific policy.