CPT code 58356 represents endometrial cryoablation (cryotherapy of the uterine lining), typically performed with ultrasound guidance and sometimes combined with suction curettage to treat excessive or abnormal uterine bleeding. The procedure is clinically significant as a minimally invasive option for patients seeking alternatives to hysterectomy or hormonal therapy, affecting utilization and reimbursement policy across outpatient surgical settings nationwide. Key national payers in scope include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare.

Readers will find an overview of the clinical context for endometrial cryoablation, typical settings of care, and payer coverage considerations. The publication summarizes benchmarking metrics where available, common billing and coding considerations tied to CPT code 58356, and recent policy or coverage updates that influence prior authorization, medical necessity criteria, and site-of-service determinations. The analysis also highlights areas where data is limited or variable across payers and flags operational impacts for billing teams and revenue cycle managers. Data not available in the input is clearly identified and omitted from specific charts or tables.