Secondary Condition Claim · VASRD 6354
Chronic Fatigue Syndrome (CFS) Secondary to Atrioventricular Block
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 Atrioventricular Block.
Why Chronic Fatigue Syndrome (CFS) Is Linked to Atrioventricular Block
Poor heart output
Primary condition · VASRD 7015
Atrioventricular Block
Atrioventricular block is a delay or interruption in the electrical signal travelling from the heart's upper chambers to its lower chambers. The schedule splits the code in two by degree of block. First-degree and second-degree Type I block are treated as benign and evaluated under the General Rating Formula for Diseases of the Heart, so the percentage turns on the exertion your heart tolerates before heart failure symptoms appear. Second-degree Type II and third-degree block are treated as non-benign and evaluated under DC 7018, the code for implantable cardiac pacemakers.
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 Atrioventricular Block — severity of Chronic Fatigue Syndrome (CFS) itself determines the percentage.
| Rating | Criteria |
|---|---|
| 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. |
Example combined rating
30% Atrioventricular Block + 40% Chronic Fatigue Syndrome (CFS) = 58%
The VA combines ratings with Table I of 38 CFR 4.25, not simple addition — 30% and 40% combine to 58%, not 70%. These figures are illustrative; your actual rating for each condition depends on your own evaluation.
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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 Atrioventricular Block
- Can Chronic Fatigue Syndrome (CFS) be service-connected as secondary to Atrioventricular Block?
- 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. Poor heart output You'll need a current Chronic Fatigue Syndrome (CFS) diagnosis and a medical nexus opinion linking it to your service-connected Atrioventricular…
- 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 Atrioventricular Block.
- How does a secondary Chronic Fatigue Syndrome (CFS) claim affect my combined VA rating?
- The VA doesn't add ratings together. Using the official combined-ratings formula (38 CFR 4.25): a 30% rating for Atrioventricular Block combined with a 40% rating for Chronic Fatigue Syndrome (CFS) (example figures) produces a combined rating of 58%, not 70%. Approving Chronic Fatigue Syndrome (CFS) as secondary still…
- What evidence do I need to service-connect Chronic Fatigue Syndrome (CFS) as secondary to Atrioventricular Block?
- 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 Atrioventricu…
Primary condition
Full Atrioventricular Block guide
Secondary condition
Full Chronic Fatigue Syndrome (CFS) guide
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