Inflammation of the thyroid gland that may cause pain, swelling, or changes in thyroid function.
Because the rating turns on thyroid function, thyroid function test results are the most directly relevant evidence. Lab reports showing normal thyroid hormone and TSH levels support the euthyroid finding tied to the 0% rating. If your thyroid function has shifted, lab results documenting elevated or suppressed thyroid hormone levels help establish whether the condition is manifesting as hyperthyroidism or hypothyroidism, which would move the evaluation to Diagnostic Code 7900 or 7903 respectively. Medical records from your treating provider that document the diagnosis of thyroiditis and describe current thyroid function over time are useful, as is any imaging such as ultrasound. Statements from you or people who know you describing symptoms in daily life and at work can help show how thyroid dysfunction affects your functioning, supporting the criteria under whichever code applies.
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.
