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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 say 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.) 
 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. 
 
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.) 
 
An attendant control is one which allows a caregiver to drive the wheelchair instead of the beneficiary. The 
attendant control is usually mounted on one of the rear canes of the wheelchair. This code is limited to 
proportional control devices, usually a joystick. Code E2331 is used when an attendant control is provided in 
addition to a beneficiary-operated drive control interface. 
 
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. 
 
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. 
 
Miscellaneous options, accessories, or replacement parts for wheelchairs that do not have a specific HCPCS 
code and are not included in another code should be coded K0108. If multiple miscellaneous accessories are 
provided, each should be billed on a separate claim line using code K0108. When billing more than one line 
item with code K0108, ensure that the additional information can be matched to the appropriate line item on the 
claim. It is also helpful to reference the line item to the submitted charge. If a supplier chooses to bill separately 
for a component that is included in another code, code A9900 must be used. 
 
You can find these rules 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.