HCPCS Level II code E0973 describes a wheelchair accessory: an adjustable-height, detachable armrest supplied as a complete assembly; this item is durable medical equipment used as a wheelchair component to provide arm support and adjustability, typically furnished by DME suppliers or durable medical equipment providers for use in home, outpatient clinic, skilled nursing facility, or other ambulatory settings where wheelchair seating components are modified or replaced.

For related coverage guidance, see recent payer policy updates: Prior Authorization for Durable Medical Equipment (DME), Continuous Passive Motion (CPM) Devices, Push-Rim Activated Power-Assist Device (E0986) — Manual Wheelchair Accessory.