CPT code 90870 designates the application of electric current to the brain to induce a seizure or series of seizures as a therapeutic intervention for certain mental disorders. Nationally, this code represents a specialized psychiatric procedure—electroconvulsive therapy (ECT)—that requires multidisciplinary staffing, monitored anesthesia, and a controlled clinical environment. It matters because ECT remains an important option for treatment-resistant depression, catatonia, and other severe psychiatric conditions, with implications for coverage policies, utilization management, and facility preparedness.

Key payers in the coverage landscape include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise briefing on clinical context, typical care settings, and the practical coding label for claims. The publication highlights benchmarking and payer coverage patterns where available, summarizes relevant policy considerations and claim administration elements, and orients clinicians and billing staff to the national coding designation for ECT. Data not available in the input will be noted where applicable.