evidence: The Commonwealth Fund Biennial Health Insurance Survey, 2022, was conducted by SSRS from March 28 through July 4, 2022. The survey consisted of telephone and online interviews in English and Spanish and was conducted among a random, nationally representative sample of 8,022 adults age 19 and older living in the continental United States. A combination of address-based, SSRS Opinion Panel, and prepaid cell phone samples were used to reach people. In all, 3,716 interviews were conducted online or on the phone via ABS, 3,656 were conducted online via the SSRS Opinion Panel, and 650 were conducted on prepaid cell phones. [...] Underinsured adults are individuals who are insured all year but report at least one of three indicators of financial exposure relative to income: 1) out-of-pocket costs, excluding premiums, are equal to 10 percent or more of household income; or 2) out-pocket-costs, excluding premiums, are equal to 5 percent or more of household income (if living under 200 percent of the federal poverty level); or 3) their deductible is 5 percent or more of household income. For each of the three underinsurance component measures, there are borderline cases for which the income ranges provided are too imprecise to categorize the respondent into "less than" or "more than" the stated underinsurance component. Previously, the Fund redistributed borderline cases for each component by conducting a 50/50 split into the "less than" and "more than" categories. This year we leveraged the imputed income ranges and random exact incomes generated to determine poverty status to categorize borderline cases.