What is No Cost Sharing? April 11, 2020 15:09 Updated Follow This is when the insured seeks Services that are covered at 100%. For example: Any preventive services specifically provided under ACA will be of no cost to the insured. Related articles What are Essential Health Benefits? How do I confirm my coverage and coverage dates? What is AES (Academic Emergency Services)? What is an Out-of-pocket Expense Limit? What is the Policy Year?