Primary service-connected condition

DC 7903 — Hypothyroidism

Also known as: Hypothyroidism, thyroid, underactive thyroid, Hashimoto, low thyroid, high cholesterol, hyperlipidemia, cholesterol

Mapped secondary conditions
4

These are commonly claimed secondary connections linked to this primary disability. Use them as a screening tool for conversations with your doctor, VSO, or VA-accredited attorney.

Primary Secondary

Hypothyroidism Major depressive disorder

9434
Strong

How the connection is commonly explained

Hypothyroidism directly causes depression through thyroid hormone deficiency affecting brain neurotransmitter function.

Filing tip

File depression as secondary to hypothyroidism. Thyroid lab results showing low T3/T4 alongside depression diagnosis strengthen the claim.

Relationship type: Caused by
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Primary Secondary

Hypothyroidism Degenerative arthritis, other than post-traumatic

5003
Moderate

How the connection is commonly explained

Hypothyroidism contributes to joint pain and arthritis through metabolic changes, fluid retention, and reduced tissue repair.

Filing tip

File joint conditions as secondary to hypothyroidism with rheumatology and endocrinology records.

Relationship type: Caused by
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Primary Secondary

Hypothyroidism Hypertensive vascular disease

7101
Moderate

How the connection is commonly explained

Untreated or poorly controlled hypothyroidism can cause elevated blood pressure and cardiovascular changes.

Filing tip

Document thyroid function tests alongside blood pressure readings showing correlation.

Relationship type: Caused by
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Primary Secondary

Hypothyroidism Sleep Apnea Syndromes

6847
Moderate

How the connection is commonly explained

Hypothyroidism causes weight gain and tissue swelling that narrows the upper airway, contributing to obstructive sleep apnea.

Filing tip

File sleep apnea as secondary to hypothyroidism. Sleep study and thyroid labs showing temporal correlation support the claim.

Relationship type: Caused by
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This condition may also be secondary to

Anorexia nervosa
DC 9520
Strong

Anorexia nervosa commonly causes hypothyroidism through caloric restriction and metabolic adaptation.

Uterus and both ovaries, removal
DC 7617
Strong

Bilateral oophorectomy eliminates primary estrogen production, frequently leading to hypothyroidism and metabolic changes.

Uterus, removal
DC 7618
Strong

Surgical menopause from hysterectomy (especially with oophorectomy) commonly causes hypothyroidism and other hormonal dysregulation.

Hodgkin's lymphoma
DC 7709
Moderate

Radiation treatment for Hodgkin's lymphoma frequently damages the thyroid gland, causing hypothyroidism.

How to File a Secondary Claim

1. Have your primary condition already service-connected.
2. Get diagnosed with the secondary condition.
3. Get a nexus letter from a doctor linking them.
4. File VA Form 21-526EZ and select the claim as a secondary claim.
5. Attend the C&P exam if one is scheduled.

Disclaimer: Secondary connections shown are based on commonly established medical links. Individual claims require medical evidence. Consult a VSO or VA-accredited attorney.