E2231 — Manual wheelchair accessory, solid seat support base (replaces sling seat), includes any type mounting hardware
E2231 is a HCPCS Level II code for manual wheelchair accessory, solid seat support base (replaces sling seat), includes any type mounting hardware. 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 E2231 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 E2231
- Long descriptor
- Manual wheelchair accessory, solid seat support base (replaces sling seat), includes any type mounting hardware
- Short descriptor
- Solid seat support base
- Added
- January 1, 2009
- BETOS
- D1D
- Pricing indicator
- 32 — 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.
Inexpensive and routinely purchased DME. Price subject to floors and ceilings.
Codes adjacent to E2231
HCPCS has no hierarchy — related items simply sit next to each other in the numbering. If E2231 is not quite right, the correct code is very often within a few positions of it.
- E2221Manual wheelchair accessory, solid (rubber/plastic) caster tire (removable), any size, replacement only, each
- E2222Manual wheelchair accessory, solid (rubber/plastic) caster tire with integrated wheel, any size, replacement only, each
- E2224Manual wheelchair accessory, propulsion wheel excludes tire, any size, replacement only, each
- E2225Manual wheelchair accessory, caster wheel excludes tire, any size, replacement only, each
- E2226Manual wheelchair accessory, caster fork, any size, replacement only, each
- E2227Manual wheelchair accessory, gear reduction drive wheel, each
- E2228Manual wheelchair accessory, wheel braking system and lock, complete, each
- E2230Manual wheelchair accessory, manual standing system
- E2291Back, planar, for pediatric size wheelchair including fixed attaching hardware
- E2292Seat, planar, for pediatric size wheelchair including fixed attaching hardware
- E2293Back, contoured, for pediatric size wheelchair including fixed attaching hardware
- E2294Seat, contoured, for pediatric size wheelchair including fixed attaching hardware
- E2295Manual wheelchair accessory, for pediatric size wheelchair, dynamic seating frame, allows coordinated movement of multiple positioning features
- E2298Complex rehabilitative power wheelchair accessory, power seat elevation system, any type
- E2300Wheelchair accessory, power seat elevation system, any typeterminated
- E2301Wheelchair accessory, power standing system, any type
Questions about E2231
What is HCPCS code E2231?
E2231 is a HCPCS Level II code for manual wheelchair accessory, solid seat support base (replaces sling seat), includes any type mounting hardware. It sits in the Durable Medical Equipment section.
Does Medicare cover E2231?
The CMS HCPCS file marks E2231 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.