G0166, External counterpulsation, per treatment sessionHCPCS/CPT
Prior Auth Required
Code explicitly requires prior authorization (high confidence)
ANTHEM-CG-MED-86, CG-MED-86 Enhanced External Counterpulsation in the Outpatient Setting
AETNA-CPB-0262, External Counterpulsation (ECP)
MED202.050, External Counterpulsation (ECP) Therapy for Severe Angina
BCBSIL-MED202.050, External Counterpulsation (ECP) Therapy for Severe Angina
BCBSMT-MED202.050, External Counterpulsation (ECP) Therapy for Severe Angina
Ask Verity about documentation requirements, denial risks, or coverage in your state.
BCBSNM-MED202.050, External Counterpulsation (ECP) Therapy for Severe Angina
BCBSOK-MED202.050, External Counterpulsation (ECP) Therapy for Severe Angina
EVICORE-HPLAN-CIGNA-1815296EE67F, Cigna Comprehensive Code List - Effective 03/07/2026
EVICORE-HPLAN-CIGNA-57D571603CB4, Cigna Commercial Other Services Code List - Effective 03/07/2026