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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. 
 
The rules state that 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. 
 
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) 
 
    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 power tilt seating system or power tilt and recline seating system which does not achieve a tilt of greater than 
or equal to 20 degrees is considered to be the same as the standard seat included in the base wheelchair. Codes 
E1002, E1003, E1004, E1005, E1006, E1007, E1008 must not be used to describe a power tilt seating system 
or a power tilt and recline seating system which does not achieve a tilt of greater than or equal to 20 degrees. 
These seating systems must be coded as A9900 and are not separately payable. 
 
A power leg elevation feature (E1010, E1012) involves dedicated motor(s) and related electronics with or 
without variable speed programmability which allows the legrest to be raised and lowered independently of the 
recline and/or tilt of the seating system. It includes a switch control which may or may not be integrated with 
the power tilt and/or recline control(s). It includes either articulating or non-articulating legrests. The unit of 
service of code E1010 is a pair. The unit of service for code E1012 is each. 
 
You can find this information in the Local Coverage Article Wheelchair Options/Accessories - Policy Article 
A52504. 
 
If you want to read these Medicare rules, you can go to this website www.medicareappeal.com.