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TM_E_1714_
_07_2013
Designation:E171407(Reapproved 2013)An American National StandardStandard Guide forProperties of a Universal Healthcare Identifier(UHID)1This standard is issued under the fixed designation E1714;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This guide covers a set of requirements outlining theproperties required to create a universal healthcare identifier(UHID)system.Use of the UHID is expected to initially befocused on the population of the United States but there is noinherent limitation on how widely these identifiers may beapplied.1.2 This guide sets forth the fundamental considerations fora UHID that can support at least four basic functions effec-tively:1.2.1 Positive identification of patients when clinical care isrendered;1.2.2 Automated linkage of various computer-based recordson the same patient for the creation of lifelong electronic healthcare files;1.2.3 Provision of a mechanism to support data security forthe protection of privileged clinical information;and1.2.4 The use of technology for patient records handling tokeep health care operating costs at a minimum.1.3 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2E1384 Practice for Content and Structure of the ElectronicHealth Record(EHR)E2553 Guide for Implementation of a Voluntary UniversalHealthcare Identification System3.Terminology3.1 Definitions:3.1.1 clinical record linkageindividual unit records linkedfor the purpose of documenting the sequence of events or care,or both,for a specific patient.3.1.2 discriminating power of an identifier the capabilityof an identifier to reduce the possible global population to asmaller number.For example,sex identification reduces thepopulation size to approximately half.Date of birth reduces thepopulation size to approximately one of 25 000 in the UnitedStates.The smaller the population size covered by an identifier(that is,the greater the discriminating power),the better thatidentifier is.3.1.3 encounteran instance of direct interaction,regard-less of the setting,between a patient and a practitioner vestedwith primary and autonomous responsibility for diagnosing,evaluating,treating,or some combination thereof,the patientscondition or providing social worker services(See GuideE1384).(Encounters do not include ancillary services,visits,ortelephone contacts.)3.1.4 episode of carea chain of events over a period oftime during which clinical care is provided for an illness or aclinical problem(See Guide E1384).3.1.5 healthcare identifiera tag for the identification of anindividual created for exclusive use of the health care system.3.1.6 identifiera datum,or a group of data,that allowspositive recognition of a particular individual.3.1.7 management organizationan organization respon-sible for the management and oversight of the UHID systemand its operations.3.1.8 occasion of servicea specified identifiable instanceof an act of service involved in the care of patients orconsumers(See Guide E1384).3.1.9permanent identifiera characteristic feature of anindividual that generally does not change over time,such assex,date of birth,place of birth,or fingerprint.3.1.10 private universal health care identifier(PUHID)aUHID that has been encoded in order to disidentify the personassociated with that UHID.3.1.11 prospective record linkagesuccessive documenta-tion of clinical encounters so that all records are linked duringthe process of care to ensure the continuity of patient care.Linkage is performed at the unit record level and occurs during1This guide is under the jurisdiction of ASTM Committee E31 on HealthcareInformatics and is the direct responsibility of Subcommittee E31.25 on HealthcareData Management,Security,Confidentiality,and Privacy.Current edition approved March 1,2013.Published March 2013.Originallyapproved in 1995.Last previous edition approved in 2007 as E1714 07.DOI:10.1520/E1714-07R13.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 the time the patient is receiving care.For electronic healthrecords,prospective record linkage involves linking all patientassessment,diagnostic,treatment,and other information col-lected by all care providers so that the information is availableat the time the pa