CPT code 27391 identifies an open tenotomy procedure that surgically divides multiple hamstring tendons in one leg from knee to hip. Clinically, the code captures definitive surgical management for hamstring contractures or pathologic tightness that impair knee flexion or hip extension. Nationally, accurate coding for this procedure matters for procedure tracking, surgical quality measurement, and appropriate facility and surgeon billing.

Key payers commonly involved in coverage and claims adjudication include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise clinical context for the procedure, typical sites of service, and an outline of common modifiers associated with surgical claims. The publication provides benchmarking benchmarks and payment policy context where available, highlights coding implications for facility and professional lines, and summarizes areas where documentation and coding specificity matter for payer review.

This summary is aimed at billing managers, clinical coders, and policy analysts seeking a national-level reference for CPT code 27391, including expected settings of care and the clinical rationale for use of the code. Data not available in the input is identified as such elsewhere in the document.