Cal. Insurance Code § 10123.11

(a) No insurer shall deny a claim under a group disability policy for hospital, medical, surgical, dental, or optometric services for the sole reason that the individual served was confined in a city or county jail as a prisoner, or was a juvenile detained in any facility if such individual is otherwise entitled to benefits under such group disability policy and incurs expense for the services so provided during confinement. This provision shall apply to any group disability policy entered into or renewed on or after July 1, 1980, whether or not such policy contains any provision terminating benefits under such policy upon an individual’s confinement in a city or county jail or juvenile detention facility. (b) No self-insured employee welfare benefit plan shall deny a claim under a plan for hospital, medical, surgical, dental, or optometric services for the reason that the individual served was confined in a city or county jail as a prisoner, or was a juvenile detained in any facility, if such individual is otherwise entitled to benefits under such plan and incurs expense for the services so provided during confinement. This provision shall apply to any self-insured employee welfare benefit plan entered into or renewed on or after July 1, 1980, whether or not such plan contains any provision terminating benefits under such plan upon an individual’s confinement in a city or county jail or juvenile detention facility.