Condition Rating Guides
Understand what the VA looks for at each rating level — loading conditions…
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Understand what the VA looks for at each rating level — loading conditions…
Complete stiffening or fusion of the knee joint so that it cannot bend or straighten. Ankylosis means the joint is permanently fixed in one position. The VA rates knee ankylosis based on the angle at which the knee is fixed and whether the position is favorable or unfavorable for function.
The VA rates this condition based on objective clinical measurements and test results. The examiner will use standardized tests or lab values to determine the severity of your condition rather than relying primarily on subjective symptom reports.
Diagnostic code
DC 5256
Rating range
30% – 60%
Rating levels
4
Rating criteria are defined in 38 CFR 4.71a, DC 5256. This guide presents a plain-language summary and is not a substitute for the full regulatory text. Always consult a VSO or VA-accredited attorney for case-specific advice.
You have extremely unfavorable ankylosis of the knee, with the knee fixed in flexion at an angle of 45 degrees or more. This severe position makes normal ambulation extremely difficult or impossible.
What the VA looks for