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Agilium Freestep

Item #: 50K4
Knee Osteoarthritis Solution

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Suggested HCPCS Coding: A9285
A9285 is not covered by Medicare

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Ankle-Foot-Orthosis (AFO) offers dynamic off-loading of the knee joint to promote increased mobility and delay surgical intervention.


  • Eliminates migration issues
  • Measureable load shifting to help relieve pain*
  • Reduces forces at the knee by focusing at the foot
  • Can easily be concealed under clothing
  • Lightweight minimalist design
  • Simple application in the shoe
  • No weight limitations

*Quantitative measurement using Ottobock L.A.S.A.R. Posture Machine.


  • Indicated for medial or lateral unicompartmental Osteoarthritis.


Measure using shoe size
Size Men's Shoe Size Women's Shoe Size Left Medial Part Number Right Medial Part Number Left Lateral Part Number Right Lateral Part Number
S up to 6.5 5 - 8 50K4=L36-39 50K4=R36-39 50K4=L36-39-LG 50K4=R36-39-LG
M 6.5 - 9 8 - 10.5 50K4=L39-42 50K4=R39-42 50K4=L39-42-LG 50K4=R39-42-LG
L 9 - 11.5 10.5 - 13 50K4=L42-45 50K4=R42-45 50K4=L42-45-LG 50K4=R42-45-LG
XL 11.5 - 14 13+ 50K4=L45-48 50K4=R45-48 50K4=L45-48-LG 50K4=R45-48-LG


Refine results

Reimbursement Guide

Reimbursement: (EN)

Publish date: 

PDF Document (Agilium Freestep ReimbGuide_03050.pdf | 842 KB)

Documentation Request for Private Pay

Reimbursement: (EN)

Publish date: 

PDF Document (AgiliumFreestep_FaxDocRequest_03050.pdf | 119 KB)

Billing Tips for Private Pay (US)

Reimbursement: (EN)

Publish date: 

PDF Document (US-AgiliumBillinglTips_03050.pdf | 443 KB)

Agilium Freestep OA Solution

Product Information: (EN)

Publish date: Jan 1, 2016

PDF Document (13583_Agilium_Product_Brochure_LO.pdf | 1 MB)

AFO-KAFO Documentation Packet

Reimbursement: (EN)

Publish date: Feb 24, 2020

PDF Document (AFO-KAFO_DocumentationPkt_02240.pdf | 1 MB)

50K4 Agilium Freestep - Instructions for Use

Instructions for Use: 647G1093 (EN/DE/FR/IT/ES/NL/SV/DA/NO/FI/PL/HU/ZH)

Publish date: 

PDF Document (647G1093-all_INT-17-2005w.pdf | 1 MB)