E0770: Functional electrical stimulator, transcutaneous stimulation of nerve and/or muscle groups, any type, complete system, not otherwise specified
E0770 is a HCPCS Level II code for functional electrical stimulator, transcutaneous stimulation of nerve and/or muscle groups, any type, complete system, not otherwise specified. 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 2026Q4-Oct. This states Medicare’s position on the code, not on your particular claim.
Medically Unlikely Edits: units per day
The most units of E0770 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
- 1 unit MAI 3: Date of Service Edit: Clinical · Nature of Equipment
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 2026Q4.
The CMS record for E0770
- Long descriptor
- Functional electrical stimulator, transcutaneous stimulation of nerve and/or muscle groups, any type, complete system, not otherwise specified
- Short descriptor
- Functional electric stim nos
- Added
- January 1, 2009
- BETOS
- D1E
- Pricing indicator
- 46: DMEPOS
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.
Carrier priced, not otherwise classified, individual determination, carrier discretion, or gap-filled amounts.
Codes adjacent to E0770
HCPCS has no hierarchy: related items simply sit next to each other in the numbering. If E0770 is not quite right, the correct code is very often within a few positions of it.
- 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
- E0765Fda approved nerve stimulator, for treatment of nausea and vomiting
- E0766Electrical stimulation device used for cancer treatment, includes all accessories, any type
- E0767Intrabuccal, systemic delivery of amplitude-modulated, radiofrequency electromagnetic field device, for cancer treatment, includes all accessories
- E0769Electrical stimulation or electromagnetic wound treatment device, not otherwise classified
- E0776Iv pole
- E0779Ambulatory infusion pump, mechanical, reusable, for infusion 8 hours or greater
- E0780Ambulatory infusion pump, mechanical, reusable, for infusion less than 8 hours
- E0781Ambulatory infusion pump, single or multiple channels, electric or battery operated, with administrative equipment, worn by patient
- E0782Infusion pump, implantable, non-programmable (includes all components, e.g., pump, catheter, connectors, etc.)
- E0783Infusion pump system, implantable, programmable (includes all components, e.g., pump, catheter, connectors, etc.)
- E0784External ambulatory infusion pump, insulin
- E0785Implantable intraspinal (epidural/intrathecal) catheter used with implantable infusion pump, replacement