Secondary Condition Claim · VASRD 5023
Tenosynovitis Secondary to Ankylosis of the Thumb
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 Tenosynovitis when it develops after Ankylosis of the Thumb.
Why Tenosynovitis Is Linked to Ankylosis of the Thumb
Stiff joints often overcompensate and strain surrounding tissues.
Primary condition · VASRD 5228
Ankylosis of the Thumb
Ankylosis means the thumb joint is stiff or fixed, limiting grip and hand use.
Secondary condition · VASRD 5023
Tenosynovitis
Inflammation of the sheath that surrounds a tendon, causing pain and stiffness.
Tenosynovitis VA Rating Tiers
The VA rates Tenosynovitis the same way whether it's claimed directly or as secondary to Ankylosis of the Thumb — severity of Tenosynovitis itself determines the percentage.
| Rating | Criteria |
|---|---|
| 10% | Inflamed tendon sheath makes movement painful. |
Example combined rating
10% Ankylosis of the Thumb + 10% Tenosynovitis = 19%
The VA combines ratings with Table I of 38 CFR 4.25, not simple addition — 10% and 10% combine to 19%, not 20%. These figures are illustrative; your actual rating for each condition depends on your own evaluation.
Evidence for a Tenosynovitis Secondary Claim
- •Clinical findings of localized swelling
- •Imaging showing thickening of tendon sheath
- •Physical therapy or injection treatment records
Common questions about Tenosynovitis secondary to Ankylosis of the Thumb
- Can Tenosynovitis be service-connected as secondary to Ankylosis of the Thumb?
- 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. Stiff joints often overcompensate and strain surrounding tissues. You'll need a current Tenosynovitis diagnosis and a medical nexus opinion linking it to your serv…
- What VA rating can I get for Tenosynovitis as a secondary condition?
- Tenosynovitis is rated under VASRD diagnostic code 5023 using the same criteria whether it's a direct or secondary claim: possible ratings are 10%. The rating depends on the severity of Tenosynovitis itself, not on the severity of Ankylosis of the Thumb.
- How does a secondary Tenosynovitis 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 Ankylosis of the Thumb combined with a 10% rating for Tenosynovitis (example figures) produces a combined rating of 19%, not 20%. Approving Tenosynovitis as secondary still typically raises your overall com…
- What evidence do I need to service-connect Tenosynovitis as secondary to Ankylosis of the Thumb?
- Strong evidence for the underlying Tenosynovitis diagnosis includes: Clinical findings of localized swelling; Imaging showing thickening of tendon sheath; Physical therapy or injection treatment records. For the secondary link itself, a nexus letter from a treating provider explaining how Ankylosis of the Thumb caused…
Primary condition
Full Ankylosis of the Thumb guide
Secondary condition
Full Tenosynovitis guide
Estimate your combined rating
See how Ankylosis of the Thumb and Tenosynovitis combine with the rest of your service-connected conditions using the official VA combined-ratings formula.
Open the calculator