Your thyroid VA disability rating depends on which condition you have. VA rates hypothyroidism, hyperthyroidism, and thyroid removal separately under 38 CFR 4.119, the endocrine section of its disability rating schedule. What we see veterans get wrong most often is assuming a small daily dose of thyroid medication cancels out any rating at all. VA rates thyroid removal by the condition it leaves behind.
Thyroid VA Disability Rating Basics
Three diagnostic codes cover almost every thyroid claim the Department of Veterans Affairs (VA) receives. Diagnostic code 7903 rates hypothyroidism, an underactive thyroid. Diagnostic code 7900 rates hyperthyroidism, an overactive thyroid.
- Hypothyroidism (diagnostic code 7903): 100% with myxedema, 30% without, both temporary for six months.
- Hyperthyroidism (diagnostic code 7900): 30% for six months after diagnosis, then re-evaluated.
- Thyroid removal: a temporary convalescent rating first, then a rating for the condition left behind, usually permanent hypothyroidism.
How the Thyroid Works and What Can Go Wrong
The thyroid is a small gland at the front of the neck. It makes hormones that control how fast the body uses energy, regulates heart rate, and manages body temperature.
Two conditions drive most VA thyroid claims. Hypothyroidism means the gland makes too little hormone, which slows the body down. Hyperthyroidism means it makes too much, which speeds the body up.
A goiter, an enlarged thyroid, and thyroid nodules, small lumps that form inside the gland, can accompany either condition or show up on their own. Most nodules are harmless, but a thyroid claim involving nodules or a goiter usually comes up because a nodule turned out to be cancerous or a goiter grew large enough to press on the windpipe.
When Doctors Remove the Thyroid
Surgeons remove all or part of the thyroid for a handful of reasons.
- Thyroid cancer confirmed by biopsy
- A goiter large enough to block breathing or swallowing
- Hyperthyroidism that medication and other treatment cannot control
- A thyroid nodule that biopsy results cannot rule out as cancer
Which reason applies matters for a disability claim. Thyroid cancer and uncontrolled hyperthyroidism support a different service-connection argument than a nodule found incidentally on a scan for something unrelated.
Life After Thyroid Removal
Removing the thyroid ends the body's own hormone supply, so you'll likely take a daily hormone pill for the rest of your life. Levothyroxine replaces the hormone the gland used to make, and getting the dose right can take months of blood draws and adjustments.
Three complications show up most often after surgery.
- Permanent hypothyroidism, since a gland that no longer exists cannot make hormone on its own
- Low calcium levels, because the four parathyroid glands sit behind the thyroid and can be bruised, stunned, or accidentally removed during surgery
- Voice changes, if the surgery affects the nerve that controls the vocal cords
Surgeons check calcium levels and voice function closely in the days after surgery, and most of these complications improve. Some veterans carry lasting calcium or voice problems that VA rates separately from the thyroid condition itself.
VA Disability Rating for Thyroid Removal (Thyroidectomy)
VA does not rate thyroid removal as its own permanent disability. It rates the recovery period first, then the condition the surgery leaves behind.
Under 38 CFR 4.30, surgery that needs at least a month of recovery, or leaves you with an unhealed wound, restricted joint movement, or a need for a wheelchair or crutches, can qualify for a temporary 100% convalescent rating. That rating runs for one, two, or three months and pays at the full 100% rate regardless of your regular combined rating.
Once recovery ends, VA rates whatever condition remains. If you had your thyroid removed, that's usually permanent hypothyroidism under diagnostic code 7903 afterward, since a thyroid that is gone cannot make hormone again. VA rates any lasting calcium, parathyroid, or voice complication separately, under the diagnostic code for that body system.
VA Disability Rating for Hypothyroidism (Diagnostic Code 7903)
Diagnostic code 7903 rates hypothyroidism at one of two levels, and both are temporary. Hypothyroidism with myxedema, a severe form marked by cold intolerance, muscle weakness, cardiovascular problems, and mental changes such as slowed thinking or depression, rates at 100%. Hypothyroidism without myxedema, the version behind most hypothyroidism claims, rates at 30%.
Neither rating is permanent as written. The 100% rating runs for six months after the myxedema crisis stabilizes, and the 30% rating runs for six months from the date of diagnosis. After that window, VA re-evaluates and rates whatever symptoms remain under whichever body system they affect, such as a cardiac or mental health diagnostic code, instead of continuing under 7903 itself.
Diagnostic code 7903 does not ask whether treatment is working. It asks only whether myxedema is present, so hypothyroidism controlled by daily medication still earns the 30% rating during the first six-month window. After six months, if your levothyroxine keeps symptoms in check, you can see the rating drop, since VA is then rating whatever symptoms remain instead of the diagnosis itself.
VA simplified this rating structure in 2017. Some older hypothyroidism guides describe additional 10% and 0% levels. Those reflect the schedule from before the revision.
The current regulation carries only the two levels above. It is worth checking the live text on ecfr.gov rather than an older summary.
VA Disability Rating for Hyperthyroidism (Diagnostic Code 7900)
Diagnostic code 7900 rates hyperthyroidism at 30% for six months after diagnosis, the same temporary structure as 7903. After six months, VA re-evaluates and rates whatever residual symptoms remain, such as an irregular heartbeat or eye involvement, under the diagnostic code for that body system.
If your hyperthyroidism required thyroid removal to bring it under control, you then move to permanent hypothyroidism under diagnostic code 7903, since the surgery leaves the body without any thyroid hormone production of its own.
Service Connection Paths for Thyroid Claims
VA connects a thyroid condition to service through one of three paths.
- Direct: the condition or the surgery itself happened during service, documented in service treatment records.
- Presumptive: if you have qualifying herbicide exposure and a hypothyroidism diagnosis, you do not have to prove a medical link at all.
- Secondary: a thyroid condition, or the cancer that led to removal, developed because of an already service-connected condition.
Without documented in-service thyroid problems or qualifying herbicide exposure, you'll most likely end up building a secondary or direct claim around medical evidence rather than presumption.
The Agent Orange Presumptive Connection for Hypothyroidism
Hypothyroidism has been on VA's Agent Orange presumptive conditions list since 2021. Presumptive status removes the hardest part of a thyroid claim, proving that herbicide exposure caused the hypothyroidism.
You only need qualifying service and a current diagnosis. VA presumes the connection.
Qualifying service covers more than boots-on-the-ground Vietnam service. Blue Water Navy service, C-123 aircraft exposure, and other locations and time periods added under the PACT Act can all qualify. The VA Agent Orange Presumptive Conditions: Claims Guide covers every qualifying location and service period in detail, and the Agent Orange 2026 Additions: New Presumptive Conditions & Locations page covers what has changed most recently.
Without qualifying herbicide exposure, you are not excluded from a thyroid claim. You need to prove the connection directly or through another service-connected condition instead of relying on presumption.
Medical Evidence That Supports a Thyroid Claim
A strong thyroid claim rests on a clear paper trail connecting the diagnosis, the treatment, and, where relevant, an exposure or another service-connected condition.
- Surgical and pathology records, if the thyroid was removed, showing what was found and what was taken out
- Endocrinology follow-up notes tracking hormone levels over time
- Current hormone-replacement dosage records, showing the medication and dose you take now
- Service treatment or personnel records documenting herbicide-exposure locations, for a presumptive or secondary claim
- A nexus letter from a treating or independent physician, if you don't have a presumptive connection
For claims built on direct or secondary service connection instead of presumption, the What Is a Nexus Letter? VA Claims Guide 2026 page explains what that letter needs to say and who can write one.
When TDIU Might Apply
Total Disability based on Individual Unemployability (TDIU) pays at the 100% rate even without a 100% schedular rating, as long as service-connected conditions prevent full-time, substantially gainful work. A thyroid condition alone rarely gets there. Most settle at 30% or lower once the temporary rating period ends.
Add fatigue, mental health symptoms, or another service-connected condition, though, and TDIU becomes a realistic path. The combined limitation can reach the kind of barrier to full-time work that TDIU is meant to cover. The TDIU Explained: 100% VA Pay Without 100% Rating page covers the schedular and extraschedular thresholds and how to file.
Filing and Documenting the Claim
Filing a thyroid claim starts with VA Form 21-526EZ and the medical records establishing the diagnosis and its connection to service. VA typically schedules a Compensation and Pension (C&P) exam next. That exam confirms the current diagnosis, hormone levels, and any complications from surgery.
Bring current lab results and a list of medications. That gives the examiner the same picture the treating endocrinologist already has. If you have qualifying herbicide exposure, confirm the hypothyroidism diagnosis is well documented before filing anyway, since a presumptive claim skips the nexus requirement but still needs current medical evidence.
Check the exact percentages behind your thyroid VA disability rating against the current text of 38 CFR 4.119 before you file, so you are not relying on an outdated scale.
This is general information, not legal or financial advice. Verify your specific situation with the VA or an accredited veterans service officer.