E0779 — Ambulatory infusion pump, mechanical, reusable, for infusion 8 hours or greater
E0779 is a HCPCS Level II code for ambulatory infusion pump, mechanical, reusable, for infusion 8 hours or greater. It belongs to the Durable Medical Equipment section. Whether Medicare pays it depends on the coverage rule below.
Medicare coverage: Carrier judgment
Coverage is decided by your Medicare contractor, not by national policy. Whether this is paid depends on the LCD for your jurisdiction and on what the documentation supports.
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 E0779 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
- 0 — never payable MAI 3 — Date of Service Edit: Clinical · CMS Policy
- outpatient
- 0 — never payable MAI 3 — Date of Service Edit: Clinical · CMS Policy
- 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 2026Q3.
The CMS record for E0779
- Long descriptor
- Ambulatory infusion pump, mechanical, reusable, for infusion 8 hours or greater
- Short descriptor
- Amb infusion pump mechanical
- Added
- January 1, 2000
- BETOS
- D1E
- Pricing indicator
- 36 — 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.
Capped rental DME. Price subject to floors and ceilings.
Codes adjacent to E0779
HCPCS has no hierarchy — related items simply sit next to each other in the numbering. If E0779 is not quite right, the correct code is very often within a few positions of it.
- 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
- E0770Functional electrical stimulator, transcutaneous stimulation of nerve and/or muscle groups, any type, complete system, not otherwise specified
- E0776Iv pole
- 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
- E0786Implantable programmable infusion pump, replacement (excludes implantable intraspinal catheter)
- E0787External ambulatory infusion pump, insulin, dosage rate adjustment using therapeutic continuous glucose sensing
Questions about E0779
What is HCPCS code E0779?
E0779 is a HCPCS Level II code for ambulatory infusion pump, mechanical, reusable, for infusion 8 hours or greater. It sits in the Durable Medical Equipment section.
Does Medicare cover E0779?
The CMS HCPCS file marks E0779 as "Carrier judgment". Coverage is decided by your Medicare contractor, not by national policy. Whether this is paid depends on the LCD for your jurisdiction and on what the documentation supports.