G0166 – External counterpulsation, per treatment session
HCPCS Level II code · G codes: Procedures / Professional Services (Temporary)
HCPCS codeG0166
- Long description
- External counterpulsation, per treatment session
- Short description
- Extrnl counterpulse, per tx
- Pricing indicator
11Priced using national RVUs (Physician Fee Schedule)- Medicare coverage
DSpecial coverage instructions apply- BETOS category
P6CMinor procedures - other (Medicare fee schedule)- Added
- January 1, 2000
- Last change
- January 1, 2000 – No change
Frequently asked questions
What is HCPCS code G0166?
G0166 is a HCPCS Level II code for external counterpulsation, per treatment session.
Does Medicare cover G0166?
The HCPCS file lists coverage code D: Special coverage instructions apply. Coverage and payment also depend on local coverage determinations and the patient’s plan.
Nearby G codes
- G0157 – Services performed by a qualified physical therapist assistant in the home health or hospice setting, each 15 minutes
- G0158 – Services performed by a qualified occupational therapist assistant in the home health or hospice setting, each 15 minutes
- G0159 – Services performed by a qualified physical therapist, in the home health setting, in the establishment or delivery of a safe and effective physical therapy maintenance program, each 15 minutes
- G0160 – Services performed by a qualified occupational therapist, in the home health setting, in the establishment or delivery of a safe and effective occupational therapy maintenance program, each 15 minutes
- G0161 – Services performed by a qualified speech-language pathologist, in the home health setting, in the establishment or delivery of a safe and effective speech-language pathology maintenance program, each 15 minutes
- G0162 – Skilled services by a registered nurse (rn) for management and evaluation of the plan of care; each 15 minutes (the patient's underlying condition or complication requires an rn to ensure that essential non-skilled care achieves its purpose in the home health or hospice setting)
- G0163 – Skilled services of a licensed nurse (lpn or rn) for the observation and assessment of the patient's condition, each 15 minutes (the change in the patient's condition requires skilled nursing personnel to identify and evaluate the patient's need for possible modification of treatment in the home health or hospice setting)
- G0164 – Skilled services of a licensed nurse (lpn or rn), in the training and/or education of a patient or family member, in the home health or hospice setting, each 15 minutes
- G0168 – Wound closure utilizing tissue adhesive(s) only
- G0173 – Linear accelerator based stereotactic radiosurgery, complete course of therapy in one session
- G0175 – Scheduled interdisciplinary team conference (minimum of three exclusive of patient care nursing staff) with patient present
- G0176 – Activity therapy, such as music, dance, art or play therapies not for recreation, related to the care and treatment of patient's disabling mental health problems, per session (45 minutes or more)
- G0177 – Training and educational services related to the care and treatment of patient's disabling mental health problems per session (45 minutes or more)
- G0179 – Physician or allowed practitioner re-certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and allowed practitioners to affirm the initial implementation of the plan of care
- G0180 – Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and allowed practitioners to affirm the initial implementation of the plan of care
- G0181 – Physician or allowed practitioner supervision of a patient receiving medicare-covered services provided by a participating home health agency (patient not present) requiring complex and multidisciplinary care modalities involving regular physician or allowed practitioner development and/or revision of care plans
Source: CMS HCPCS Level II quarterly file, October 2026. Reference only – check payer policy before billing.