Chronic effects of cold injury (e.g., numbness, tingling, arthritis in affected areas)
Medical records that document arthralgia, pain, numbness, or cold sensitivity in the affected part are the foundation for any rating. For a 20% or 30% rating, records showing one or more additional findings matter greatly. A physical examination could note tissue loss, color changes, nail abnormalities, or volar fat pad loss in the fingers or toes. Imaging such as X-rays may show osteoporosis, subarticular punched-out lesions, or osteoarthritis. An examiner might record muscle atrophy or fibrosis, flexion or extension deformity of distal joints, avascular necrosis, or chronic ulceration. Nerve conduction or clinical findings could confirm carpal or tarsal tunnel syndrome. Sweat-gland records might document hyperhidrosis or anhydrosis. Since each affected part is rated separately, records identifying which specific parts — both hands, both feet, ears, or nose — are involved help establish the number of separate evaluations. Statements from you describing how pain, numbness, or sensitivity affects your daily activities and work can also help document the severity and scope of your symptoms in each affected area.
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.