Designation:E2538−06(Reapproved2011)AnAmericanNationalStandardStandardPracticeforDefiningandImplementingPharmacotherapyInformationServiceswithintheElectronicHealthRecord(EHR)EnvironmentandNetworkedArchitectures1ThisstandardisissuedunderthefixeddesignationE2538;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thispracticeappliestotheprocessofdefininganddocumentingthecapabilities,logicaldatasources,andpath-waysofdataexchangeregardingpharmacotherapyinformationserviceswithinagivennetworkarchitectureservingasetofhealthcareconstituents.1.2Thispracticeisnotatechnicalimplementationstandardbut,rather,describeshowtheimplementationmethodsandtechniquescanbeusedtocoordinatepharmacotherapyserviceslogicallywithinanelectronichealthrecord(EHR)systemsenvironmentinvolvingparticipatingorganizationsandsitesconnectedbyanetworkedcommunicationsystem.1.3ThispracticecoversthecontentofthenodesandarcsoftheresultinglogicalnetworkinvolvingEHR,pharmacy,andclinicallaboratory-capablesites.Thispracticealsoconsidersthevariouspurposesandorganizationalarrangementsforcoordinatingpharmacotherapyserviceswithinthenetworkboundariesandtheconsiderationsforconnectionsamongexternalnetworks.1.4Thispracticereferstootherstandardsforconventionswithinvariousdatadomains,suchaspharmacysystems,clinicallaboratoryinformationmanagementsystems(CLIMS),andEHRsystems,andformessagingconventions.1.5Thispracticeisintendedtooutlinehowintegrationofpharmacy,CLIMS,andEHRinformationsystemscanbeundertakentoresultinatransparentpharmacotherapyclinicaldecisionsupportenvironment,regardlessoftheunderlyingimplementationarchitecture,bydescribingthelogicalinterop-erabilityofinformationdomainsasfacilitatedbyinformationandcommunicationstechnology(ICT).1.6Thispracticeisdirectedatpharmacists,clinicalpharmacologists,clinicallabor...