Before anything else, please know that Health Coverage is only intended for the employer's contribution and won't be visible in the employee's section. To get around this, you'll want to work with an accountant to determine the appropriate tax tracking type for the employee's deduction.
Alternatively, you can click box 12 in the W-2 to manually override the amount when preparing the form.
I'm also providing this handy article to help you rectify inconsistencies on your W-2: Fix an incorrect W-2 and W-3.
Additionally, check out this article if you want your employees to access W-2: Invite your employees to QuickBooks Workforce to see pay stubs and W-2s if you use QuickBooks Deskto....
Please don't hesitate to share your thoughts in the Comment section. Your feedback is invaluable as I work towards excellence. By doing so, I can get back to you and help you with your concerns about W-2s or other QuickBooks-related questions. Take care!