Anatomical loss of one hand and one foot.
To support a 100 percent rating under diagnostic code 5108, the evidence needs to show that you have experienced anatomical loss — meaning actual amputation or absence — of one hand and one foot. Medical records documenting the amputation of both a hand and a foot are the most direct evidence. Operative reports, surgical records, or discharge summaries from the time of amputation would reflect when and how each loss occurred.
A VA or private medical examination that confirms the absence of the hand and foot through physical findings would also support the rating. Imaging such as X-rays may be part of the record as well. Because the rating has only one level, there are no higher or lower thresholds to document — the evidence simply needs to establish that both losses are present. Statements from you or people who know you about daily functioning with prosthetics or without them may also be part of your file, though the anatomical loss itself is the central criterion.
Conditions that are often caused or made worse by this one. If you have any of these, they may be claimable as secondary service connection.