Hypothyroidism (underactive thyroid)

For a 100% rating, records that document myxedema carry the most weight. This includes physician notes or hospital records confirming the diagnosis of myxedema, along with test results or clinical findings showing cardiovascular involvement such as low blood pressure readings, a slow heart rate on an EKG, or imaging showing pericardial effusion. Neuropsychological evaluations, mental health records, or physician observations documenting dementia, depression, or slowed thinking also support this level. Records showing cold intolerance or significant muscular weakness round out the picture.

For a 30% rating, records confirming a diagnosis of hypothyroidism without myxedema are central. Lab results such as thyroid function tests showing abnormal thyroid-stimulating hormone or thyroid hormone levels, along with physician notes documenting the diagnosis date, help establish this level.

For either level, your own statements and those of people who know you describing how symptoms affect your ability to work, concentrate, or carry out daily activities can support the medical findings. If eye symptoms are present, ophthalmology records documenting findings like exophthalmos or double vision may support a separate evaluation under the eye schedule.