On this page
The short answer
Repetitive strain from work is compensable, and there is no requirement that anything dramatic happened.
But two rating facts are worth knowing now rather than at the end.
The two facts
Loss of grip strength is expressly excluded. The AMA Guides state that in compression neuropathies, no additional impairment is given for decreased grip strength. The most intuitive complaint — "I can't hold anything" — is written out of the rating.
And normal electrodiagnostic testing does not permit a diagnosis for rating purposes. A worker with real symptoms and clean nerve studies rates zero under the strict method.
Neither affects your right to medical treatment or to wage replacement while you are off work. Those are separate entitlements. The full explanation.
And De Quervain's, trigger finger, and epicondylitis have no diagnosis-based value at all — they rate zero if motion returns.
What to do now
Report it in writing, even though there was no incident.
Describe the work specifically: what motion, how many times an hour, with what force, for how many hours, for how many years. "Repetitive work" is not a mechanism.
Get the nerve conduction study. It is what the rating method requires, and it is what a causation dispute turns on.
And mention both hands if both are affected — bilateral carpal tunnel should generate two rating strings, one per hand, each converted and then combined. A single string for bilateral CTS is a checkable problem.
The deadline is probably not what you think
Under § 5412, the date of injury for a cumulative trauma claim is when you first suffered disability and knew or should have known it was work-related — not when the symptoms began.
"It's been bothering me for years" is a description of a cumulative trauma claim, not a reason it is late. How.
What will be argued
Diabetes, thyroid disease, obesity, pregnancy, age, and non-work keyboard use.
Several are genuine risk factors. But apportionment is to disability, not to risk factors — and under Escobedo the opinion must explain how and why. More.
Where this comes from
Talk to a lawyer
Free consultation. No fee unless we recover. You are not responsible for costs we advance if there is no recovery.
General information about California law, not legal advice about your case.
Impairment values described are from the AMA Guides, 5th Edition as applied under the California rating schedule; the Guides are a copyrighted medical text and figures here are summarized rather than reproduced. Your rating depends on your own examination findings.
Law Offices of Solov & Teitell, APC · (213) 380-9310 · 24/7 (213) 463-6469
Printed from https://www.solovteitell.com/answers/i-think-i-have-carpal-tunnel/ · Last reviewed 2026-08-23