E1820 — Replacement soft interface material, dynamic adjustable extension/flexion device
E1820 is a HCPCS Level II code for replacement soft interface material, dynamic adjustable extension/flexion device. 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 E1820 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
- 2 units MAI 3 — Date of Service Edit: Clinical · Clinical: Data
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 E1820
- Long descriptor
- Replacement soft interface material, dynamic adjustable extension/flexion device
- Short descriptor
- Soft interface material
- Added
- January 1, 1996
- BETOS
- D1E
- 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 E1820
HCPCS has no hierarchy — related items simply sit next to each other in the numbering. If E1820 is not quite right, the correct code is very often within a few positions of it.
- E1810Dynamic adjustable knee extension and flexion device, includes soft interface material
- E1811Static progressive stretch/patient actualized serial stretch knee device, extension and/or flexion, with or without range of motion adjustment, includes all components and accessories
- E1812Dynamic knee, extension/flexion device with active resistance control
- E1813Dynamic adjustable knee extension only device, includes soft interface material
- E1814Dynamic adjustable knee flexion only device, includes soft interface material
- E1815Dynamic adjustable ankle extension and flexion device, includes soft interface material
- E1816Static progressive stretch/patient actualized serial stretch ankle device, flexion and/or extension, with or without range of motion adjustment, includes all components and accessories
- E1818Static progressive stretch/patient actualized serial stretch forearm pronation / supination device, with or without range of motion adjustment, includes all components and accessories
- E1821Replacement soft interface material/cuffs for bi-directional static progressive stretch device
- E1822Dynamic adjustable ankle extension only device, includes soft interface material
- E1823Dynamic adjustable ankle flexion only device, includes soft interface material
- E1825Dynamic adjustable finger extension and flexion device, includes soft interface material
- E1826Dynamic adjustable finger extension only device, includes soft interface material
- E1827Dynamic adjustable finger flexion only device, includes soft interface material
- E1828Dynamic adjustable toe extension only device, includes soft interface material
- E1829Dynamic adjustable toe flexion only device, includes soft interface material
Questions about E1820
What is HCPCS code E1820?
E1820 is a HCPCS Level II code for replacement soft interface material, dynamic adjustable extension/flexion device. It sits in the Durable Medical Equipment section.
Does Medicare cover E1820?
The CMS HCPCS file marks E1820 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.