An inherited blood disorder causing red blood cells to become crescent-shaped, leading to pain and anemia.
Medical records that document the number of painful episodes you experienced in the past 12 months are central to this rating. Records should show where the pain occurred — skin, joints, bones, or major organs — and confirm the episodes were caused by hemolysis and sickling of red blood cells. Lab results showing anemia, and imaging or clinical findings showing thrombosis or infarction, support the higher rating levels.
For the 100% rating, records or statements showing that residual symptoms prevent even light manual labor carry significant weight. For the 60% rating, evidence of 3 episodes per year or documentation that you are limited to light manual labor is relevant. For the 10% rating, clinical findings or imaging that confirm organ impairment — even when you are currently asymptomatic — help establish that level.
Your own statements, and those of people who know you, describing how episodes affect your ability to work or carry out daily activities can help show the functional impact of your symptoms across rating levels.
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.