Invacare Wheelchair E1028 User Manual

Medicare Reimbursement Guide for Power Wheelchair Drive Control Systems  
Drive Control System Terminology  
The term interface in the code narrative and definitions describes the mechanism for controlling the movement of a  
power wheelchair. Examples of interfaces include, but are not limited to, joystick, sip and puff, chin control, head  
control, etc.  
A proportional interface is one in which the direction and amount of movement by the patient controls the  
direction and speed of the wheelchair. One example of a proportional interface is a standard joystick.  
A non-proportional interface is one, which involves a number of switches. Selecting a particular switch  
determines the direction of the wheelchair, but the speed is pre-programmed. One example of a non-proportional  
interface is a sip-and-puff mechanism.  
The term controller describes the electronics that connect the interface to the motor and gears in the power  
wheelchair base.  
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 patient having to continually  
activate the interface.) This switch is sometimes referred to as a kill switch.  
A direction change switch allows the patient to change the direction that is controlled by another separate switch  
or by a mechanical proportional head control interface. For example, it allows a switch to initiate forward movement  
one time and backward movement another time.  
A function selection switch allows the patient to determine what operation is being controlled by the interface at  
any particular time. Operations may include, but are not limited to, drive forward, drive backward, tilt forward,  
recline backward, etc.  
HCPCS Coding for Drive Control Systems  
E1028  
Wheelchair accessory, manual swing away, retractable or removable mounting hardware for  
joystick, other control interface or positioning accessory ($175.56 to 206.28)  
Coding Guideline (E1028)  
Code E1028 is used for hardware that allows a cushioned headrest (E0955), lateral trunk or hip  
supports (E0956, E1025-E1027), or a medial thigh support (E0957) to swing away manually or to  
be removed. Code E1028 is also used for swing away hardware used with interfaces described by  
codes E2320 and E2321, swing away or flip-down hardware for head control interfaces E2327-  
E2330, and swing away hardware for an indicator display box that is related to the multi-motor  
electronic connection codes E2310 or E2311. Code E1028 is not to be used for swing away  
hardware used with a sip and puff interface (E2325) because swing away hardware is included in  
the allowance for that code.  
This information is not intended to be, nor should it be considered billing or legal advice. Providers are responsible for determining  
the appropriate billing codes when submitting claims to the Medicare Program and should consult an attorney or other advisor to  
discuss specific situations in further detail. This information is subject to change without notice.  
© 2004 Invacare Corporation  
Page 1 of 3  
Rev. 03/04 JHS  
 
E2327  
Power wheelchair accessory, head control interface, mechanical, proportional, including all related  
electronics, mechanical direction change switch, and fixed mounting hardware ($1960 to $2307)  
Coding Guideline (E2327)  
A proportional, mechanical head control interface (E2327) is one in which a headrest is attached to  
a joystick-like device. The direction and amount of movement of the patient's head pressing on the  
headrest control the direction and speed of the wheelchair. A mechanical direction control switch is  
included in the code.  
E2328  
Power wheelchair accessory, head control or extremity control interface, electronic, proportional,  
including all related electronics and fixed mounting hardware ($3295 to $3878)  
Coding Guideline (E2328)  
A proportional, electronic head control interface (E2328) is one in which a patient's head  
movements are sensed by a box placed behind the patient's head. The direction and amount of  
movement of the patient's head (which does not come in contact with the box) control the direction  
and speed of the wheelchair. A proportional, electronic extremity control interface (E2328) is one in  
which the direction and amount of movement of the patient's arm or leg control the direction and  
speed of the wheelchair.  
E2329  
Power wheelchair accessory, head control interface, contact switch mechanism, non-proportional,  
including all related electronics, mechanical stop switch, mechanical direction change switch, head  
array, and fixed mounting hardware ($1470 to $1731)  
Coding Guideline (E2329)  
A non-proportional, contact switch head control interface (E2329) is one in which a patient  
activates one of three mechanical switches placed around the back and sides of their head. These  
switches are activated by pressure of the head against the switch. The switch that is selected  
determines the direction of the wheelchair. A mechanical stop switch and a mechanical direction  
change switch are included in the allowance for the code.  
E2330  
Power wheelchair accessory, head control interface, proximity switch mechanism, non-  
proportional, including all related electronics, mechanical stop switch, mechanical direction change  
switch, head array, and fixed mounting hardware ($2833 to $3334)  
Coding Guideline (E2330)  
A non-proportional, proximity switch head control interface (E2330) is one in which a patient  
activates one of three switches placed around the back and sides of their head. Movement of the  
head toward the switch activates the switch, though the head does not touch the switch. The switch  
that is selected determines the direction of the wheelchair. A mechanical stop switch and a  
mechanical direction change switch is included in the allowance for the code  
E2331  
E2399  
Power wheelchair accessory, attendant control, proportional, including all related electronics and  
fixed mounting hardware (Non-covered by Medicare)  
Coding Guideline (E2331)  
An attendant control (E2331) is one, which allows a caregiver to drive the wheelchair instead of the  
patient. 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.  
Power wheelchair accessory, not otherwise classified interface, including all related electronics and  
any type mounting hardware (Individual Consideration)  
This information is not intended to be, nor should it be considered billing or legal advice. Providers are responsible for determining  
the appropriate billing codes when submitting claims to the Medicare Program and should consult an attorney or other advisor to  
discuss specific situations in further detail. This information is subject to change without notice.  
© 2004 Invacare Corporation  
Page 3 of 3  
Rev. 03/04 JHS  
 

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