E0746 — Electromyography (emg), biofeedback device
E0746 is a HCPCS Level II code for electromyography (emg), biofeedback device. It belongs to the Durable Medical Equipment section. Whether Medicare pays it depends on the coverage rule below.
Medicare coverage: Special coverage instructions apply
There are published conditions attached to this code. Check the applicable coverage policy before billing it: the code being valid is not the same as the service being covered.
From the coverage field of the CMS Alpha-Numeric HCPCS File, release 2026Q3-Jul. This states Medicare’s position on the code, not on your particular claim.
Medically Unlikely Edits — units per day
The most units of E0746 Medicare will pay on one date of service. Bill more on a single line and it is denied. The limit is not the same in every setting, so the row that matters is the one matching the claim you are building.
- practitioner
- 1 unit MAI 3 — Date of Service Edit: Clinical · Nature of Equipment
- outpatient
- 1 unit MAI 3 — Date of Service Edit: Clinical · Nature of Equipment
- DME supplier
- 0 — never payable MAI 3 — Date of Service Edit: Clinical · CMS Policy
The adjudication indicator decides whether exceeding the limit is worth appealing at all: MAI 1 is a line edit you can support with documentation, MAI 3 is a date-of-service edit that is also appealable, and MAI 2 is absolute — no documentation overrides it. CMS MUE 2026Q3.
The CMS record for E0746
- Long descriptor
- Electromyography (emg), biofeedback device
- Short descriptor
- Electromyograph biofeedback
- Added
- January 1, 1989
- BETOS
- D1E
- Pricing indicator
- 52 — Other
The official wording. This is what the code means.
CMS's 28-character form, which is what shows up on a remittance advice.
When CMS introduced the code.
Berenson-Eggers Type of Service — CMS's own analytic grouping.
Reasonable charge.
Codes adjacent to E0746
HCPCS has no hierarchy — related items simply sit next to each other in the numbering. If E0746 is not quite right, the correct code is very often within a few positions of it.
- E0736Transcutaneous tibial nerve stimulator
- E0737Transcutaneous tibial nerve stimulator, controlled by phone application
- E0738Upper extremity rehabilitation system providing active assistance to facilitate muscle re-education, include microprocessor, all components and accessories
- E0739Rehabilitation system with interactive interface providing active assistance in rehabilitation therapy, includes all components and accessories, motors, microprocessors, sensors
- E0740Non-implanted pelvic floor electrical stimulator, complete system
- E0743External lower extremity nerve stimulator for restless legs syndrome, each
- E0744Neuromuscular stimulator for scoliosis
- E0745Neuromuscular stimulator, electronic shock unit
- E0747Osteogenesis stimulator, electrical, non-invasive, other than spinal applications
- E0748Osteogenesis stimulator, electrical, non-invasive, spinal applications
- E0749Osteogenesis stimulator, electrical, surgically implanted
- E0755Electronic salivary reflex stimulator (intra-oral/non-invasive)
- E0760Osteogenesis stimulator, low intensity ultrasound, non-invasive
- E0761Non-thermal pulsed high frequency radiowaves, high peak power electromagnetic energy treatment device
- E0762Transcutaneous electrical joint stimulation device system, includes all accessories
- E0764Functional neuromuscular stimulation, transcutaneous stimulation of sequential muscle groups of ambulation with computer control, used for walking by spinal cord injured, entire system, after completion of training program
Questions about E0746
What is HCPCS code E0746?
E0746 is a HCPCS Level II code for electromyography (emg), biofeedback device. It sits in the Durable Medical Equipment section.
Does Medicare cover E0746?
The CMS HCPCS file marks E0746 as "Special coverage instructions apply". There are published conditions attached to this code. Check the applicable coverage policy before billing it: the code being valid is not the same as the service being covered.