E0457 — Chest shell (cuirass)
E0457 is a HCPCS Level II code for chest shell (cuirass). It belongs to the Durable Medical Equipment section. Medicare does not pay it — see the coverage note below before you bill it.
Medicare coverage: Not payable by Medicare
Medicare does not pay this code. It may still be valid for another payer, but a Medicare claim carrying it will not be reimbursed.
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 E0457 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 E0457
- Long descriptor
- Chest shell (cuirass)
- Short descriptor
- Chest shell
- Added
- January 1, 1990
- BETOS
- D1E
- 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 E0457
HCPCS has no hierarchy — related items simply sit next to each other in the numbering. If E0457 is not quite right, the correct code is very often within a few positions of it.
- E0442Stationary oxygen contents, liquid, 1 month's supply = 1 unit
- E0443Portable oxygen contents, gaseous, 1 month's supply = 1 unit
- E0444Portable oxygen contents, liquid, 1 month's supply = 1 unit
- E0445Oximeter device for measuring blood oxygen levels non-invasively
- E0446Topical oxygen delivery system, not otherwise specified, includes all supplies and accessories
- E0447Portable oxygen contents, liquid, 1 month's supply = 1 unit, prescribed amount at rest or nighttime exceeds 4 liters per minute (lpm)
- E0450Volume control ventilator, without pressure support mode, may include pressure control mode, used with invasive interface (e.g., tracheostomy tube)terminated
- E0455Oxygen tent, excluding croup or pediatric tents
- E0459Chest wrap
- E0460Negative pressure ventilator; portable or stationaryterminated
- E0461Volume control ventilator, without pressure support mode, may include pressure control mode, used with non-invasive interface (e.g., mask)terminated
- E0462Rocking bed with or without side rails
- E0463Pressure support ventilator with volume control mode, may include pressure control mode, used with invasive interface (e.g., tracheostomy tube)terminated
- E0464Pressure support ventilator with volume control mode, may include pressure control mode, used with non-invasive interface (e.g., mask)terminated
- E0465Home ventilator, any type, used with invasive interface, (e.g., tracheostomy tube)
- E0466Home ventilator, any type, used with non-invasive interface, (e.g., mask, chest shell)
Questions about E0457
What is HCPCS code E0457?
E0457 is a HCPCS Level II code for chest shell (cuirass). It sits in the Durable Medical Equipment section.
Does Medicare cover E0457?
The CMS HCPCS file marks E0457 as "Not payable by Medicare". Medicare does not pay this code. It may still be valid for another payer, but a Medicare claim carrying it will not be reimbursed.