CPT code 27394 identifies a surgical hamstring tendon lengthening procedure performed on one leg, with incisions extending from the knee toward the hip to release and lengthen multiple hamstring tendons. The code captures a targeted orthopedic intervention intended to improve knee extension and reduce functional limitations caused by hamstring tightness or contracture. Nationally, this procedure is relevant for orthopedics and physical rehabilitation pathways and factors into coverage determinations and facility planning for operative musculoskeletal care.

Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise clinical context for CPT code 27394, a breakdown of typical sites of service and service type, and benchmarking and policy-oriented material where available. The publication highlights coding relationships, common modifier usage, and considerations for surgical billing workflows. It also summarizes where additional data is required and notes that specific diagnosis coding and payer-specific coverage criteria should be reviewed when preparing claims.

This brief aims to equip billing specialists, orthopedic clinicians, and policy analysts with the essential facts about CPT code 27394, helping them locate further details on reimbursement policy, clinical indications, and billing practice.