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The interfaces described below by codes E2320-E2322, E2325, and E2327-E2330 must have programmable
control parameters for speed adjustment, tremor dampening, acceleration control, and braking.
E2320 Power wheelchair accessory, hand or chin control interface, remote joystick or touch pad,
proportional, including all related electronics, and fixed mounting hardware ($848 to $999)
E2321 Power wheelchair accessory, hand control interface, remote joystick, non-proportional, including all
related electronics, mechanical stop switch, and fixed mounting hardware ($1302 to $1533)
Coding Guideline (E2320 and E2321)
A remote joystick (E2320, E2321) is one in which the joystick itself is separate from the controller
box (i.e., the box containing the electronics that connects the interface to the motor and gears).
These codes include remote joysticks that are used for hand control as well as joysticks that are
used for chin control. Code E2320 includes either a standard proportional remote joystick stick or a
proportional remote joystick in which small movements of the joystick are sufficient to control the
wheelchair. The latter type of joystick is sometimes referred to as mini-proportional, compact, or
short throw joysticks.
Code E2320 also describes a touch pad, which is an interface similar to the pad-type mouse found
on portable computers.
E2322 Power wheelchair accessory, hand control interface, multiple mechanical switches, non-
proportional, including all related electronics, mechanical stop switch, and fixed mounting hardware
($1198 to $1411)
Coding Guideline (E2322)
Code E2322 describes a system of 3-5 mechanical switches, which are activated by the patient
touching the switch. The switch that is selected determines the direction of the wheelchair. A
mechanical stop switch and a mechanical direction change switch, if provided, are included in the
allowance for the code.
E2323 Power wheelchair accessory, specialty joystick handle for hand control interface, prefabricated
($54 to $65)
Coding Guideline (E2323)
Code E2323 includes prefabricated joystick handles that have shapes other than a straight stick -
e.g., U shape or T shape - or that have some other nonstandard feature - e.g., flexible shaft.
E2324 Power wheelchair accessory, chin cup for chin control interface ($37 to $45)
Coding Guideline (E2324)
When code E2320 or E2321 is used for a chin control interface, the chin cup is billed separately
with code E2324.
E2325 Power wheelchair accessory, sip and puff interface, non-proportional, including all related
electronics, mechanical stop switch, and manual swing away mounting hardware ($1144 to $1347)
E2326 Power wheelchair accessory, breath tube kit for sip and puff interface ($271 to $320)
Coding Guideline (E2325 and E2326)
A sip and puff interface (E2325) is a non-proportional interface in which the patient holds a tube in
their mouth and controls the wheelchair by either sucking in (sip) or blowing out (puff). A
mechanical stop switch is included in the allowance for the code. E2325 does not include the
breath tube kit described by code E2326.
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 2 of 3 Rev. 03/04 JHS