Secondary Condition Claim · VASRD 5242
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 Degenerative Arthritis of the Spine when it develops after Knee Replacement (Prosthesis).
Posture changes
Primary condition · VASRD 5055
Knee Replacement (Prosthesis)
This code covers a total knee replacement, and unlike other joint conditions, it comes with an automatic 100% rating for the first year after surgery to account for the recovery period - after that year, the rating is re-evaluated based on how the knee actually functions long-term.
Secondary condition · VASRD 5242
Degenerative Arthritis of the Spine
Wear and tear in the spine causing stiffness, pain, or nerve issues.
The VA rates Degenerative Arthritis of the Spine the same way whether it's claimed directly or as secondary to Knee Replacement (Prosthesis) — severity of Degenerative Arthritis of the Spine itself determines the percentage.
Example combined rating
30% Knee Replacement (Prosthesis) + 20% Degenerative Arthritis of the Spine = 44%
The VA combines ratings with Table I of 38 CFR 4.25, not simple addition — 30% and 20% combine to 44%, not 50%. These figures are illustrative; your actual rating for each condition depends on your own evaluation.
Primary condition
Full Knee Replacement (Prosthesis) guide
Secondary condition
Full Degenerative Arthritis of the Spine guide
See how Knee Replacement (Prosthesis) and Degenerative Arthritis of the Spine combine with the rest of your service-connected conditions using the official VA combined-ratings formula.
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