Every news article I read about the House GOP health care compromise suggests that it would allow states to waive the Affordable Care Act's pre-existing condition protections. That is not what the amendment would do. Nor would it allow insurance companies to charge higher premiums for people with a health condition in all cases.
All the amendment would do is to allow insurance companies to charge higher premiums for individual market customers with a health condition, but only in cases where they did not maintain "continuous coverage." And it's critical to understand the difference.