Secondary Condition Claim · VASRD 6354

Chronic Fatigue Syndrome (CFS) Secondary to Thyroiditis

A condition caused or aggravated by an already service-connected disability can be granted its own service connection as a secondary condition under 38 CFR § 3.310. Here's how that works for Chronic Fatigue Syndrome (CFS) when it develops after Thyroiditis.

Why Chronic Fatigue Syndrome (CFS) Is Linked to Thyroiditis

Underactive thyroid

Primary condition · VASRD 7906

Thyroiditis

Thyroiditis is inflammation of the thyroid gland. It is rated on the thyroid state it produces: an overactive phase is evaluated as hyperthyroidism (DC 7900) and an underactive phase as hypothyroidism (DC 7903), while a euthyroid gland is rated 0 percent under DC 7906.

Secondary condition · VASRD 6354

Chronic Fatigue Syndrome (CFS)

CFS causes persistent fatigue not improved by rest and worsened by physical or mental activity.

Chronic Fatigue Syndrome (CFS) VA Rating Tiers

The VA rates Chronic Fatigue Syndrome (CFS) the same way whether it's claimed directly or as secondary to Thyroiditis — severity of Chronic Fatigue Syndrome (CFS) itself determines the percentage.

RatingCriteria
100%You can’t perform any regular activity due to extreme fatigue.
60%You're only able to function about half the time due to fatigue.
40%Significant exhaustion that limits what you can do most days.
20%Chronic tiredness that limits your lifestyle and function.
10%Occasional fatigue that interferes with daily tasks.

Email me this Chronic Fatigue Syndrome (CFS) secondary guide

Get the rating criteria for Chronic Fatigue Syndrome (CFS), the evidence a secondary claim needs, and why it is linked to Thyroiditis — delivered to your inbox.

We’ll email what you asked for, plus occasional Vetrify updates and practical VA disability education. Unsubscribe anytime with the one-click link in every email.

Evidence for a Chronic Fatigue Syndrome (CFS) Secondary Claim

  • VA physician diagnosis of CFS
  • Labs ruling out other causes
  • Personal logs of fatigue patterns
  • C&P exam documenting activity limits

Common questions about Chronic Fatigue Syndrome (CFS) secondary to Thyroiditis

Can Chronic Fatigue Syndrome (CFS) be service-connected as secondary to Thyroiditis?
Yes. Under 38 CFR § 3.310, a condition that is caused or aggravated by an already service-connected disability can be granted secondary service connection. Underactive thyroid You'll need a current Chronic Fatigue Syndrome (CFS) diagnosis and a medical nexus opinion linking it to your service-connected Thyroiditis — t…
What VA rating can I get for Chronic Fatigue Syndrome (CFS) as a secondary condition?
Chronic Fatigue Syndrome (CFS) is rated under VASRD diagnostic code 6354 using the same criteria whether it's a direct or secondary claim: possible ratings are 100%, 60%, 40%, 20%, 10%. The rating depends on the severity of Chronic Fatigue Syndrome (CFS) itself, not on the severity of Thyroiditis.
What evidence do I need to service-connect Chronic Fatigue Syndrome (CFS) as secondary to Thyroiditis?
Strong evidence for the underlying Chronic Fatigue Syndrome (CFS) diagnosis includes: VA physician diagnosis of CFS; Labs ruling out other causes; Personal logs of fatigue patterns; C&P exam documenting activity limits. For the secondary link itself, a nexus letter from a treating provider explaining how Thyroiditis c…

Primary condition

Full Thyroiditis guide

Secondary condition

Full Chronic Fatigue Syndrome (CFS) guide

Estimate your combined rating

See how Thyroiditis and Chronic Fatigue Syndrome (CFS) combine with the rest of your service-connected conditions using the official VA combined-ratings formula.

Open the calculator
VA Calc: Disability Pay app icon

VA Calc: Disability Pay

Combine your ratings & see monthly pay on your iPhone · Works offline

Download on theApp Store