Alder Hey Children's NHS Foundation Trust in Liverpool has been identified as potentially high risk and sits in band 1, despite CQC inspectors working under a previous inspection regime saying the trust was meeting essential NHS standards earlier this year.
Among five risks identified in the new collection of data, three were regarded as "elevated risks" and related to whistleblowing, the quality of data submitted by the trust and staff concerns over managers.
Leeds Teaching Hospitals NHS Trust, which runs Leeds General Infirmary, also passed essential standards last year and is listed in band 1. Concerns there include whistleblowing, cases of the bug Clostridium difficile and serious concerns over education.
Nearly a quarter of hospitals have been identified as providing poor quality care in a report from the health watchdog.
Almost a quarter of NHS trusts in England have been identified as high risk, see the full list of the Trusts and what risk