The BMJ, in an article by Ned Stafford, reports that:
Germany’s public health insurers—who cover more than 90% of the population—have called for the government to adopt measures that would require health professionals to report all incidents of medical malpractice and create a central transparent database for collection and evaluation of the data.
Despite enactment in 2013 of a new patient rights law, Germany still has no central collection point for allegations of malpractice, with cases primarily investigated by regional medical associations, by insurance companies, or in the courts. Experts say that many alleged cases of malpractice are never recorded.
Source: Ethics and Health Law News