E1352 — Oxygen accessory, flow regulator capable of positive inspiratory pressure
E1352 is a HCPCS Level II code for oxygen accessory, flow regulator capable of positive inspiratory pressure. 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 E1352 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
- 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 E1352
- Long descriptor
- Oxygen accessory, flow regulator capable of positive inspiratory pressure
- Short descriptor
- O2 flow reg pos inspir press
- Added
- January 1, 2014
- BETOS
- D1C
- Pricing indicator
- 00 — Not priced by Part B
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.
Service not separately priced by Part B — not covered, bundled into another service, or used by Part A only.
Codes adjacent to E1352
HCPCS has no hierarchy — related items simply sit next to each other in the numbering. If E1352 is not quite right, the correct code is very often within a few positions of it.
- E1290Heavy duty wheelchair, detachable arms (desk or full length) swing away detachable footrest
- E1295Heavy duty wheelchair, fixed full length arms, elevating legrest
- E1296Special wheelchair seat height from floor
- E1297Special wheelchair seat depth, by upholstery
- E1298Special wheelchair seat depth and/or width, by construction
- E1300Whirlpool, portable (overtub type)
- E1301Whirlpool tub, walk-in, portable
- E1310Whirlpool, non-portable (built-in type)
- E1353Regulator
- E1354Oxygen accessory, wheeled cart for portable cylinder or portable concentrator, any type, replacement only, each
- E1355Stand/rack
- E1356Oxygen accessory, battery pack/cartridge for portable concentrator, any type, replacement only, each
- E1357Oxygen accessory, battery charger for portable concentrator, any type, replacement only, each
- E1358Oxygen accessory, dc power adapter for portable concentrator, any type, replacement only, each
- E1372Immersion external heater for nebulizer
- E1390Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate
Questions about E1352
What is HCPCS code E1352?
E1352 is a HCPCS Level II code for oxygen accessory, flow regulator capable of positive inspiratory pressure. It sits in the Durable Medical Equipment section.
Does Medicare cover E1352?
The CMS HCPCS file marks E1352 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.