Professional Liability
A forms of Errors & Omissions insurance, sometimes called malpractice coverage for errors alleged against those in the healing and legal professions.
Arbitrarily it seems, E & O is the term applied most often to insurance covering liability for mistakes in matters affecting property, for example coverage for insurance agents E & O, architects E & O, while professional liability is used in reference to coverage such as druggists professional liability, physicians and surgeons professional liability, and lawyers professional liability.