After reading the CFR 38' I found out that I can file a disbility claim for Spinal Stenisis, Arthritis and Spondylosis. My MRI report clearly annotated that in fact I have these disabilities. My SC is lumbar herniated disc (L5-S1). My application for IU was denied last month because my disability rating just came out to 40%. The CFR clearly states that these disabilities will be evaluated separately and combined the rating as a single disability. I figured that since these disabilities are in the same eptiology with my SC the rating for this will just be added to my SC rating of 40%. If the rating for each is 10%, it will give me a total disability of 70% which can satisfy the treshold to qualify for IU. What do you think? Should I file an NOD using this new evidence.