Section 9373 Of Article 8. Survivor’s Allowances From California Government Code >> Division 2. >> Title 2. >> Part 1. >> Chapter 3.5. >> Article 8.

. "Disability," "disabled" or "incapacitated" means, with respect to qualification for a survivor allowance, inability to engage in any substantial gainful occupation by reason of any physical or mental impairment which is determined on the basis of competent medical opinion secured by the board, to be of permanent or extended and uncertain duration.