ISO/TS 22220:2011 indicates the data elements and structure suited to accurate and procedurally appropriate and sensitive identification of individuals in health care in a face-to-face setting supported by computer technology, or through interactions between computer systems. It provides guidelines for improving the positive identification of subjects of care within and between health care organizations. ISO/TS 22220:2011 defines demographic and other identifying data elements suited to capturing subject of care identification in health care settings, and the wide variety of manual and computer enhanced procedures used for this process. It provides guidance on the application of these procedures in the manual and the computer environment and makes recommendations about the nature and form of health care identifiers, the management organization to oversee subject of care identification and computer support to be provided for the identification process.