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Secondary Condition Claim · VASRD 5106

Hand, Loss of Use Secondary to Muscle Group VII, Forearm Muscles

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 Hand, Loss of Use when it develops after Muscle Group VII, Forearm Muscles.

Why Hand, Loss of Use Is Linked to Muscle Group VII, Forearm Muscles

Forearm muscles control finger strength

Primary condition · VASRD 5307

Muscle Group VII, Forearm Muscles

Damage to muscles in the forearm that affect wrist and finger movement.

Secondary condition · VASRD 5106

Hand, Loss of Use

Complete inability to use the hand for grasping or manipulation.

Hand, Loss of Use VA Rating Tiers

The VA rates Hand, Loss of Use the same way whether it's claimed directly or as secondary to Muscle Group VII, Forearm Muscles — severity of Hand, Loss of Use itself determines the percentage.

RatingCriteria
70%Cannot use main hand
60%Non-primary hand disabled

Example combined rating

10% Muscle Group VII, Forearm Muscles + 70% Hand, Loss of Use = 73%

The VA combines ratings with Table I of 38 CFR 4.25, not simple addition — 10% and 70% combine to 73%, not 80%. These figures are illustrative; your actual rating for each condition depends on your own evaluation.

Evidence for a Hand, Loss of Use Secondary Claim

  • Occupational therapy reports
  • Strength testing and daily task logs

Common questions about Hand, Loss of Use secondary to Muscle Group VII, Forearm Muscles

Can Hand, Loss of Use be service-connected as secondary to Muscle Group VII, Forearm Muscles?
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. Forearm muscles control finger strength You'll need a current Hand, Loss of Use diagnosis and a medical nexus opinion linking it to your service-connected Muscle G…
What VA rating can I get for Hand, Loss of Use as a secondary condition?
Hand, Loss of Use is rated under VASRD diagnostic code 5106 using the same criteria whether it's a direct or secondary claim: possible ratings are 70%, 60%. The rating depends on the severity of Hand, Loss of Use itself, not on the severity of Muscle Group VII, Forearm Muscles.
How does a secondary Hand, Loss of Use claim affect my combined VA rating?
The VA doesn't add ratings together. Using the official combined-ratings formula (38 CFR 4.25): a 10% rating for Muscle Group VII, Forearm Muscles combined with a 70% rating for Hand, Loss of Use (example figures) produces a combined rating of 73%, not 80%. Approving Hand, Loss of Use as secondary still typically rais…
What evidence do I need to service-connect Hand, Loss of Use as secondary to Muscle Group VII, Forearm Muscles?
Strong evidence for the underlying Hand, Loss of Use diagnosis includes: Occupational therapy reports; Strength testing and daily task logs. For the secondary link itself, a nexus letter from a treating provider explaining how Muscle Group VII, Forearm Muscles caused or aggravated Hand, Loss of Use is typically the de…

Primary condition

Full Muscle Group VII, Forearm Muscles guide

Secondary condition

Full Hand, Loss of Use guide

Estimate your combined rating

See how Muscle Group VII, Forearm Muscles and Hand, Loss of Use combine with the rest of your service-connected conditions using the official VA combined-ratings formula.

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