Clinical Context
A 72-year-old male with advanced osteoarthritis of both knees and limited endurance presents to an outpatient durable medical equipment (DME) supplier after evaluation by his primary care physician and physical therapist. The patient is functionally unable to ambulate long distances due to pain, deconditioning, and risk of falls. He uses a cane at home but requires a mobility device for community ambulation to attend medical appointments and grocery shopping. The treating physician documents medical necessity, including history, physical exam, prior conservative interventions (assistive devices trial, physical therapy), and a mobility assessment demonstrating inability to perform activities of daily living safely without a powered mobility device.
The DME supplier orders a power wheelchair billed under K0820 — a Group 2 standard portable power wheelchair with a sling/solid seat/back and patient weight capacity up to and including 300 pounds. Typical workflow includes physician face-to-face evaluation and written order, mobility evaluation and justification by a therapist or certified ATP/occ. therapist, prior authorization if required by the payer, delivery and patient training by the supplier, and documentation of device setup and patient competency. Typical site of service is outpatient DME supplier or patient home for delivery and training. Payers that may be involved include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, BUCA (block utility commercial administrators), and Medicare.