Secondary Condition Claim · VASRD 5271
A condition caused or aggravated by an already service-connected disability can be granted its own service connection as a secondary condition under 38 CFR § 3.310. Here's how that works for Ankle, Limitation of Motion when it develops after Knee Impairment Due to Tibia/Fibula Fracture (Malunion/Nonunion).
Malunion alters joint mechanics over time.
Primary condition · VASRD 5262
Knee Impairment Due to Tibia/Fibula Fracture (Malunion/Nonunion)
Poor healing of the lower leg bones affects how your leg functions, especially the knee or ankle.
Secondary condition · VASRD 5271
Ankle, Limitation of Motion
Reduced ability to flex or extend the ankle, usually due to injury or arthritis.
The VA rates Ankle, Limitation of Motion the same way whether it's claimed directly or as secondary to Knee Impairment Due to Tibia/Fibula Fracture (Malunion/Nonunion) — severity of Ankle, Limitation of Motion itself determines the percentage.
Example combined rating
20% Knee Impairment Due to Tibia/Fibula Fracture (Malunion/Nonunion) + 10% Ankle, Limitation of Motion = 28%
The VA combines ratings with Table I of 38 CFR 4.25, not simple addition — 20% and 10% combine to 28%, not 30%. These figures are illustrative; your actual rating for each condition depends on your own evaluation.
Primary condition
Full Knee Impairment Due to Tibia/Fibula Fracture (Malunion/Nonunion) guide
Secondary condition
Full Ankle, Limitation of Motion guide
See how Knee Impairment Due to Tibia/Fibula Fracture (Malunion/Nonunion) and Ankle, Limitation of Motion combine with the rest of your service-connected conditions using the official VA combined-ratings formula.
Open the calculator