role patient role CDISC definition: patient. Person under a physician's care for a particular disease or condition. NOTE: A subject in a clinical trial is not necessarily a patient, but a patient in a clinical trial is a subject. See also subject, trial subject, healthy volunteer. Often used interchangeably GROUP:Role Branch OBI, CDISC a hospitalized person; a person with controlled diabetes; the patient's role http://www.fertilityjourney.com/testingAndDiagnosis/theRightDoctor/thePatientsRole/index.asp?C=55245395146924652778 a role which inheres in a person and is realized by the process of being under the care of a physician or health care provider patient patient role yes