When drug after drug failed, a teen hoped brain surgery could fix her daily seizures. Insurance denied it.

Several weeks after NBC News reached out to Anthem Blue Cross Blue Shield about the denial, the insurer changed its policy to include coverage of deep brain stimulation for certain children.

Brandi Sharp tends to find herself restless at night.

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Her 13-year-old daughter, Cambrie, has uncontrolled seizures. Sharp, a mother of three, is constantly up, checking to make sure Cambrie is breathing.

During the day, when she’s not at work as a school nurse, Sharp, of rural Hazel Dell, Illinois, is laser-focused on finding effective treatment for Cambrie’s epilepsy. It’s all-consuming, she said.