E2120 — Pulse generator system for tympanic treatment of inner ear endolymphatic fluid
E2120 is a HCPCS Level II code for pulse generator system for tympanic treatment of inner ear endolymphatic fluid. 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 E2120 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 2 — Date of Service Edit: Policy · Code Descriptor / CPT Instruction
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 E2120
- Long descriptor
- Pulse generator system for tympanic treatment of inner ear endolymphatic fluid
- Short descriptor
- Pulse gen sys tx endolymp fl
- Added
- January 1, 2004
- 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 E2120
HCPCS has no hierarchy — related items simply sit next to each other in the numbering. If E2120 is not quite right, the correct code is very often within a few positions of it.
- E1905Virtual reality cognitive behavioral therapy device (cbt), including pre-programmed therapy software
- E2000Gastric suction pump, home model, portable or stationary, electric
- E2001Suction pump, home model, portable or stationary, electric, any type, for use with external urine and/or fecal management system
- E2100Blood glucose monitor with integrated voice synthesizer
- E2101Blood glucose monitor with integrated lancing/blood sample
- E2102Adjunctive, non-implanted continuous glucose monitor or receiver
- E2103Non-adjunctive, non-implanted continuous glucose monitor or receiver
- E2104Home blood glucose monitor for use with integrated lancing/blood sample testing cartridge
- E2201Manual wheelchair accessory, nonstandard seat frame, width greater than or equal to 20 inches and less than 24 inches
- E2202Manual wheelchair accessory, nonstandard seat frame width, 24-27 inches
- E2203Manual wheelchair accessory, nonstandard seat frame depth, 20 to less than 22 inches
- E2204Manual wheelchair accessory, nonstandard seat frame depth, 22 to 25 inches
- E2205Manual wheelchair accessory, handrim without projections (includes ergonomic or contoured), any type, replacement only, each
- E2206Manual wheelchair accessory, wheel lock assembly, complete, replacement only, each
- E2207Wheelchair accessory, crutch and cane holder, each
- E2208Wheelchair accessory, cylinder tank carrier, each
Questions about E2120
What is HCPCS code E2120?
E2120 is a HCPCS Level II code for pulse generator system for tympanic treatment of inner ear endolymphatic fluid. It sits in the Durable Medical Equipment section.
Does Medicare cover E2120?
The CMS HCPCS file marks E2120 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.