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The rules say that plans must pay for a medical service or item if regular Medicare would pay for it in this case. 
You can find this rule at 42 Code of Federal Regulations (CFR) Section 422.101. 
 
A power seat elevation feature (E2300) and power standing feature (E2301) are non-covered because they are 
not primarily medical in nature. If a wheelchair has an electrical connection device described by code E2310 or 
E2311 and if the sole function of the connection is for a power seat elevation or power standing feature, it will 
be denied as non-covered. 
 
If an attendant control (E2331) is provided in addition to a beneficiary-operated drive control system, it will be 
denied as non-covered. (See the related LCD for situations in which it is provided in place of a beneficiary-
operated system. 
 
A power seat elevation system (E2300) includes: a motor and related electronics with or without variable speed 
programmability; a switch control which is independent of the power wheelchair drive control interface; any 
hardware that is needed to attach the seating system to the wheelchair base. It must provide a seat elevation of 
at least 6 inches. 
 
Codes E2310 and E2311 describe the electronic components that allow the beneficiary to control two or more 
of the following motors from a single interface (e.g., proportional joystick, touchpad, or non-proportional 
interface): power wheelchair drive, power tilt, power recline, power shear reduction, power leg elevation, 
power seat elevation, power standing. It includes a function selection switch which allows the beneficiary to 
select the motor that is being controlled and an indicator feature to visually show which function has been 
selected. When the wheelchair drive function has been selected, the indicator feature may also show the 
direction that has been selected (forward, reverse, left, right). This indicator feature may be in a separate 
display box or may be integrated into the wheelchair interface. Payment for the code includes an allowance for 
fixed mounting hardware for the control box and for the display box (if present). 
 
An expandable controller is capable of accommodating one or more of the following additional functions: 
Other types of proportional input devices (e.g., mini-proportional or compact joysticks, touchpads, chin control, 
head control, etc.) Non-proportional input devices (e.g., sip and puff, head array, etc.) Operate 3 or more 
powered seating actuators through the drive control. (Note: Control of the power seating actuators though the 
Control Input Device would require the use of an additional component, E2310 or E2311.)

An expandable controller may also be able to operate one or more of the following: a separate display (i.e., for 
alternate control devices), other electronic devices (e.g., control of an augmentative speech device or computer 
through the chair's drive control), or an attendant control. 
 
For power wheelchairs which are capable of being upgraded to an expandable controller (K0835, K0836, 
K0837, K0838, K0839, K0840, K0841, K0842, K0843, K0848, K0849, K0850, K0851, K0852, K0853, 
K0854, K0855, K0856 K0857, K0858, K0859, K0860, K0861 K0862, K0863, K0864, K0868, K0869, K0870, 
K0871, K0877, K0878, K0879, K0880, K0884, K0885, K0886, K0890, K0891), E2377 is used if an 
expandable controller is provided at the time of initial issue. Code E2376 is used with complete replacement of 
an expandable controller. A harness (E2313) describes all of the wires, fuse boxes, fuses, circuits, switches, etc. 
that are required for the operation of an expandable controller. It also includes all the necessary fasteners, 
connectors, and mounting hardware. Code E2313 is separately billable in addition to an expandable controller 
both at initial issue and with complete replacement of the expandable controller. Code K0108 must not be used 
for any component or feature of an expandable controller at the time of initial issue. The reimbursement for any 
type of complete expandable controller is included in the allowance for codes E2377/E2376 plus E2313. 
However, if individual components of the harness are replaced, code K0108 should be used. A switch is an 
electronic device which turns power to a particular function either "on" or "off". The external component of a 
switch may be either mechanical or non-mechanical. Mechanical switches involve physical contact in order to 
be activated. Examples of the external components of mechanical switches include, but are not limited to, 
toggle, button, ribbon, etc. Examples of the external components of non-mechanical switches include, but are 
not limited to, proximity, infrared, etc. Some of the codes include multiple switches. In those situations, each 
functional switch may have its own external component or multiple functional switches may be integrated into 
a single external switch component or multiple functional switches may be integrated into the wheelchair 
control interface without having a distinct external switch component. A stop switch allows for an emergency 
stop when a wheelchair with a non-proportional interface is operating in the latched mode. (Latched mode is 
when the wheelchair continues to move without the beneficiary having to continually activate the interface.) 
This switch is sometimes referred to as a kill switch. 
 
The interfaces described by codes E2312, E2321, E2322, E2325, E2327, E2328, E2329, E2330, E2373, E2374, 
E2375, E2376, E2377 must have programmable control parameters for speed adjustment, tremor dampening, 
acceleration control, and braking. 
 
You can find this in the Local Coverage Article: Wheelchair options/accessories (A52504). 
 
If you want to read these Medicare rules, you can go to this website www.medicareappeal.com. 
 
The Plan contract says that the Plan covers items and services in accordance with Medicare rules.