located in at all times immaterial entity gross anatomical part route of administration http://ncit.nci.nih.gov/ncitbrowser/ConceptReport.jsp?dictionary=NCI%20Thesaurus&code=C38114 YH,YL CDISC has a codelist: Rout of Administration. Desription from CDISC: The course by which a substance was administered in order to reach the site of action in the body. CDISC_SDTM_Route_of_Administration_Terminology http://en.wikipedia.org/wiki/Route_of_administration http://ncit.nci.nih.gov/ncitbrowser/ConceptReport.jsp?dictionary=NCI%20Thesaurus&code=C66729 a path that is located in gross anatomical part of an organism (e.g., human) and is used for administering a vaccine, a drug, fluid, poison, or other substance into the body.