VA Disability Rating for Hyperthyroid Heart Disease (DC 7008)
Diagnostic Code 7008 · 38 CFR §4.104
What Is It?
Hyperthyroid heart disease occurs when an overactive thyroid gland produces too much thyroid hormone, which overstimulates the heart. The excess hormones can cause rapid heart rate, irregular rhythms like atrial fibrillation, high-output heart failure, and eventually permanent heart muscle damage. Veterans who developed hyperthyroidism during military service and went on to develop cardiac complications may qualify for disability compensation for the resulting heart disease.
Rating Criteria
| Rating | Criteria |
|---|---|
| See pathways | DC 7008 assigns no percentages of its own. The schedule directs that hyperthyroid heart disease be rated under the appropriate cardiovascular diagnostic code, depending on the particular findings. In practice that is the General Rating Formula for Diseases of the Heart, reached through the code that fits the disease picture: a workload of 3.0 METs or less results in heart failure symptoms rates 100 percent; 3.1 to 5.0 METs, 60 percent; 5.1 to 7.0 METs, or evidence of cardiac hypertrophy or dilatation confirmed by echocardiogram or equivalent, 30 percent; and 7.1 to 10.0 METs, or continuous medication required for control, 10 percent. |
Evidence Needed
- Service medical records showing hyperthyroidism diagnosis or thyroid abnormalities
- Thyroid function tests (TSH, T3, T4) from service and current records
- Cardiology records documenting arrhythmia, heart enlargement, or heart failure linked to thyroid disease
- Echocardiogram showing heart structure and any cardiac hypertrophy or dilatation
- Stress test results or METs estimation
- Medical opinion connecting the heart condition to the thyroid disorder
C&P Exam Tips
- Bring both your endocrinology and cardiology records to show the connection between thyroid disease and heart problems
- Be specific about when cardiac symptoms started in relation to your thyroid diagnosis
- Describe daily limitations caused by heart symptoms — palpitations, exercise intolerance, fatigue, breathlessness
- If your thyroid condition has been treated but heart damage remains, emphasize that the cardiac effects are permanent
- Make sure the examiner addresses whether the heart disease was caused or worsened by the hyperthyroidism
How to File
File on VA Form 21-526EZ. If hyperthyroidism is already service-connected, claim the heart disease as secondary. Include endocrinology records, cardiac testing, and a nexus letter explaining how the overactive thyroid damaged the heart.
Common Mistakes
Not establishing the thyroid condition as service-connected first Get your hyperthyroidism rated before or at the same time as the heart disease claim. Assuming the heart will recover once thyroid levels normalize Document that the cardiac damage is permanent even if the thyroid is now controlled. Get a cardiology opinion on this point. Submitting thyroid labs but no cardiac evidence You need heart-specific testing — echocardiogram, EKG, and stress test — not just thyroid function labs.
Frequently Asked Questions
What if my thyroid condition is now controlled with medication?
Even if your thyroid levels are normal now, the heart damage caused during the period of hyperthyroidism can be permanent and ratable.
Can I be rated for both the thyroid condition and the heart disease?
Yes. Hyperthyroidism is rated under the endocrine system codes and the resulting heart disease under DC 7008. They address different body systems.
Is atrial fibrillation from hyperthyroidism rated separately?
It depends. If the atrial fibrillation is considered part of the hyperthyroid heart disease, it may be included in the DC 7008 rating. If it is a distinct ongoing condition, it could potentially be rated separately.