What is the Difference between Group 2 and Group 3 Heavy Duty Chairs?

The primary differences between Group 2 and Group 3 heavy duty power wheelchairs involve their weight capacities, intended environments, and specific frame features. Based on RESNA definitions, the key distinctions include:

  • Weight Capacity: Group 2 heavy duty chairs are designed for users weighing between 300 and 450 lbs. Group 3 models are built for higher capacities of 450 lbs or more.
  • Primary Environment: Group 2 chairs excel in indoor environments with limited outdoor use. Group 3 chairs are primarily designed for outdoor and all-terrain mobility.
  • Frame and Motor Specifications: Group 3 chairs feature heavy-duty frames, larger motors, and deeper seating compared to the moderate-duty frames and standard motors found on Group 2 models.
  • Seat-to-Floor Height: Group 2 chairs typically have a height of 17″–19″, while Group 3 chairs sit slightly higher at approximately 19″–21″.
  • Medicare Coding: Group 2 chairs often fall under code K0823, which applies to heavy-duty power-operated vehicles for indoor use. Group 3 chairs (such as code K0863) require additional documentation of medical necessity to prove they are required for the user’s lifestyle and clinical needs.

Related FAQs