Three fingers on one hand are locked in a position that limits hand function.
Medical records showing which three fingers are affected and which hand is your major or minor hand are central to this rating. Exam findings should document whether each affected joint — the metacarpophalangeal, proximal interphalangeal, or, for the thumb, the carpometacarpal and interphalangeal joints — is truly fixed and cannot move. Findings that confirm unfavorable positioning include notation that a joint is locked in extension or full flexion, that rotation or angulation of a bone is present, or that the measured gap between the fingertip and the proximal transverse crease of the palm exceeds two inches when the finger is flexed as far as possible.
X-rays or imaging can show bone fusion or joint destruction consistent with ankylosis. Surgical or treatment records help establish the history and severity of the condition. Statements from you or people who know you describing how the stiffened fingers affect grip, pinch, daily tasks, or your ability to work can help show the functional impact at each rating level.
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.
