Secondary Condition Claim · VASRD 7530
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 Chronic renal disease when it develops after Interstitial Nephritis.
Reduced erythropoietin
Primary condition · VASRD 7533
Interstitial Nephritis
Kidney inflammation that affects filtering ability, often caused by medications or infections.
Secondary condition · VASRD 7530
Chronic renal disease
Chronic renal disease is progressive, long-term kidney damage that impairs the kidneys' ability to filter waste from the blood, and it's presumptively connected to Gulf War and PACT Act toxin exposures like contaminated water and burn pits for qualifying veterans. The rating depends on how much kidney function has actually declined, measured through lab work.
The VA rates Chronic renal disease the same way whether it's claimed directly or as secondary to Interstitial Nephritis — severity of Chronic renal disease itself determines the percentage.
Example combined rating
30% Interstitial Nephritis + 80% Chronic renal disease = 86%
The VA combines ratings with Table I of 38 CFR 4.25, not simple addition — 30% and 80% combine to 86%, not 110%. These figures are illustrative; your actual rating for each condition depends on your own evaluation.
Primary condition
Full Interstitial Nephritis guide
Secondary condition
Full Chronic renal disease guide
See how Interstitial Nephritis and Chronic renal disease combine with the rest of your service-connected conditions using the official VA combined-ratings formula.
Open the calculator