Do 401k withdrawals count as income for Obamacare?

Do 401k withdrawals count as income for Obamacare?

Include most IRA and 401k withdrawals. (See details on retirement income in the instructions for IRS publication 1040). Note: Don’t include qualified distributions from a designated Roth account as income. Divorces and separations finalized before January 1, 2019: Include as income.