A condition where blood vessels in the fingers and toes narrow excessively in response to cold or stress, reducing blood flow.
Medical records that document how often your characteristic attacks occur are central to supporting a rating. Records showing your doctor's observations of sequential color changes in your digits, the typical duration of attacks, and what triggers them help establish the nature of your condition. Records noting the frequency of attacks — whether daily, several times a week, or less often — directly tie to the rating criteria.
For higher ratings, records confirming the presence of two or more digital ulcers are important. This could include clinical photographs, wound care notes, or specialist evaluations. If auto-amputation of a digit has occurred, surgical records, pathology reports, or imaging that documents the loss would support the 100% level.
Your own statements, and statements from people who live or work with you, describing how often attacks happen and how they affect your daily activities and work can also help. For example, descriptions of how cold environments or emotional stress at work or home trigger your symptoms, and how you manage or avoid those situations, can give context to what the medical records show.
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.