There are many representations of informed consent in EHR systems. Such representations aid in clarifying which protocols are relevant to a research study, and what may be done with a particular biological sample taken from a patient. In this way, they aid in ensuring research can move forward while protecting patient rights.
I am presently aiding in a revision of the OBO Foundry Informed Consent Ontology (ICO), whose goal is to unite a series of ontological representations in order to track consent across the life cycle, from the moment consent is provided, through the transfer of that consent power to various other institutions, where it may be used to permit a particular research study.
The original version of the file developed by Oliver He and colleagues is available here and a development fork of its github repo containing this ontology is presently under development here. The development team and I are grateful to Oliver and his colleagues at the University of Michigan for the opportunity to work with them, and we look forward to presenting at ICBO2018. Comments and criticisms welcome. See our poster here.