A rare disease causing inflammation and blood clots in small and medium arteries and veins, typically in the arms and legs.
For a 20% rating, medical records or a VA examination that documents diminished pulses in the upper extremity would support that level. Vascular studies or Doppler findings showing reduced blood flow can help establish this.
For a 40% rating, records showing trophic changes — photographs, clinical notes describing skin atrophy, hair loss on the hand or fingers, nail deformities, or fissuring — combined with documented numbness or tingling at the fingertips and diminished pulses would be relevant. Nerve conduction or sensory testing may also reflect the paresthesia criterion.
For a 60% rating, records documenting persistent coldness of the extremity, pain in the hand triggered by physical activity, trophic changes, and diminished pulses would be needed. Your own written statement describing when hand pain occurs and how it limits activity can help show the functional picture.
For a 100% rating, clinical records or imaging confirming deep ischemic ulcers and necrosis of the fingers, alongside the findings above, would be central. Wound care records, tissue evaluation notes, or surgical records may document necrosis directly.
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.