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5143
§ 4.71a Schedule of ratings—musculoskeletal system.

Thumb and long finger loss

Amputation of the thumb and middle finger on one hand.

What the rating means

Diagnostic code 5143 covers the anatomical loss of both the thumb and the long (middle) finger together. VA rates this combination at 50% if the loss involves your major (dominant) hand, and 40% if it involves your minor (nondominant) hand. There is only one rating level for this condition — the percentage does not increase or decrease based on severity, because the rating is tied to the anatomical loss itself rather than to a range of functional findings.

If you have lost additional digits or have conditions affecting other joints, VA may evaluate those separately. When two or more digits of the same hand are affected by a combination of amputation, ankylosis, or limited motion not otherwise covered, VA assigns the level that best represents the overall disability.

Evidence that helps

The central fact VA needs to confirm is that you have experienced anatomical loss of both the thumb and the long finger. Surgical operative reports, amputation records, and pathology reports document the fact and level of loss. A VA or private examination that physically confirms the absence of these digits on the named hand is also key evidence.

Records identifying which hand is your major (dominant) or minor (nondominant) hand support the correct percentage. A statement from you or someone who knows you well — describing how the loss of these two digits affects tasks at work or in daily life, such as gripping, writing, or handling objects — can help VA understand the full picture of your disability. Any records showing whether additional digits on the same hand are also affected may be relevant if VA is evaluating multiple losses together.

Secondary conditions

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.