Background
Daniel Boos appealed the district court’s order affirming the Commissioner of Social Security’s denial of his application for disability benefits. The appeal challenged the Administrative Law Judge’s findings regarding Boos’s physical and mental impairments.
The court’s reasoning
The court reviewed the district court’s order de novo, reversing only for legal error or lack of substantial evidence. The panel found substantial evidence supported the ALJ’s determination that Boos’s spine disorder was not severe. The ALJ properly considered mental impairments in the residual functional capacity assessment, noting Boos failed to provide medical documentation for specific conditions. The ALJ correctly concluded Boos failed to establish a per se disability under statutory listing criteria. The ALJ provided clear and convincing reasons for rejecting Boos’s testimony regarding symptom severity, citing inconsistencies with daily activities and successful treatment. Arguments regarding the hypothetical question to the vocational expert were derivative of the RFC assessment and failed. Claims regarding the duty to develop testimony and deference to agency interpretations were forfeited for failure to raise them in district court.
What it means going forward
The decision reinforces the Ninth Circuit’s standard of review for Social Security disability appeals, emphasizing that ALJ findings supported by substantial evidence will be upheld even when evidence is susceptible to multiple interpretations.