A set of 10 categories of services health insurance plans must cover under the Affordable Care Act. These include doctors’ services, inpatient and outpatient hospital care, prescription drug coverage, pregnancy and childbirth, mental health services, and more. Some plans cover more services. Plans must offer dental coverage for children. Dental benefits for adults are optional. Specific services may vary based on your state’s requirements. You’ll see exactly what each plan offers when you compare plans.