Secondary Condition Claim · VASRD 5020
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 Osteomyelitis when it develops after Fistula in Ano.
Recurrent openings
Primary condition · VASRD 7337
Fistula in Ano
Abnormal tunnel between the rectum and skin, causing pain and discharge.
Secondary condition · VASRD 5020
Osteomyelitis
A serious bone infection that can damage tissue and lead to disability.
The VA rates Osteomyelitis the same way whether it's claimed directly or as secondary to Fistula in Ano — severity of Osteomyelitis itself determines the percentage.
Example combined rating
10% Fistula in Ano + 30% Osteomyelitis = 37%
The VA combines ratings with Table I of 38 CFR 4.25, not simple addition — 10% and 30% combine to 37%, not 40%. These figures are illustrative; your actual rating for each condition depends on your own evaluation.
Primary condition
Full Fistula in Ano guide
Secondary condition
Full Osteomyelitis guide
See how Fistula in Ano and Osteomyelitis combine with the rest of your service-connected conditions using the official VA combined-ratings formula.
Open the calculator