Is a $0 visit fee telehealth service considered significant care? Regulators have not answered this question, although millions of Americans have access to telehealth and HDHP plans.

Not all employers have the option to have employees work remotely, but they're still doing what they can to accommodate workers.

About $100 billion is intended to reimburse "eligible health care providers for health care-related expenses or lost revenue."

Across account types, 8 percent of Vanguard retail or workplace plan clients made a trade between February 19 and March 20.