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If you are not sure which form, you are in good company. Apparently a lot of VSO’s are using a 21-4138. While “they” seem to get away with that one, dont try that at home!!! Thanks to Alex Graham for clarifying this one:
Short version: Use the 21-526 To file a claim for a condition you have never filed before.
Use the 20-0995 instead, if you have applied for this condition before and are seeking an increase OR, it was denied previously. Even then, you would be wise to follow Alex’s advice, above.
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