Implementing Electronic Health Record System Based Essays - Health

Implementing Electronic Health Record System Based on HL7 RIM -Reusing the RIM Model Archetypes Nancy Mittal Abstract: It is difficult to exchange healthcare information between different HealthCare Systems. Health Level Seven is a universal standard to facilitate the communication between different HealthCare Systems. Electronic Health Record System is a software platform that store patient health data which maintained by hospital and medical practice. Health Level 7 Reference Information Model was studied to provide the interoperability between different HealthCare Systems. In this paper, we studied about the various version of Health Level Seven standard including HL7 v2.x, HL7 v3.0, HL7 RIM. This paper focused on how the existing structure of HL7 is improved by reusing the HL7 RIM classes such as Act, Role, and Entity etc each are associated with set of attributes. It explains to modify the existing structure of HL7, need to modify the HL7 RIM because HL7 RIM model provide the structure of HL7. This paper also explained the role based queries are performed by the interested stakeholders like pati ents, doctors and hospitals. In this new structural form, role based information is maintained in the centralize database. This research fills the gap between skilled and semi-skilled users and query is performed on role base. Keywords: HL7, RIM, Role, Archetypes 1. Introduction: With the continuous development of health records, maintain and exchange the information in different HealthCare systems has become unavoidable. So, the communication between different hospitals or between different HealthCare system need to improved. Electronic Health Record is a repository of health information in a digital format about an individual patient or population managed by hospitals or medical practice that shared across different HealthCare Systems. It reduces the chances of data replication. More organizations adopt EHR; physicians, nurses and clinicians have greater access to patient information which helps in accurate diagnosis and complete data helps to ensure the best possible care. Electronic Health Record (EHR) system is needed to focus on two requirements: dynamic involvement of different hospitals, patients and HealthCare Systems And the way of maintaining the information. Standard compliant EHR provide facility of communication and to exchange information of patients between different hospitals, doctors, HealthCare systems. Each patient has his own queries respective to their role in the system. The query interface is designed to provide the effective knowledge among different kind of patients, hospitals. Health Level Seven: Heath Level Seven is a standard developing organisation accredited by ANSI (American National Standard Institute) founded in 1987. HL7[1] name refers the top layer of the OSI (Open System Interconnection) layer protocol for the health environment. HL7 specifies a number of various standards health information and also provide communication between different HealthCare System. Standard are the set of rules that allow information to be shared in standardized and reliable manner. HL7 messaging standard: There are two main HL7 messaging standard HL7 v2.x and HL7 v3.0. HL7 v2.x is also called as pipe hat. This standard provides the interoperability specification for health and medical transaction. HL7 v2.x message format are in human readable ASCII and non XML encoding syntax. It supports administrative, logistical, financial as well as clinical messages. HL7 v3.0 provides the interoperability specification for health and medical transaction based on RIM (Reference Information Model). HL7 v3.0 message format based on XML encoding syntax and also on HDF (formal methodology) and object oriented principle. It supports only clinical data. Movement from HL7 v2 to HL7 v3 is that v3 would be model driven methodology means v3 standard support healthcare workflows through modelling; the end result maximize reuse and increase consistency in HL7 specification. Another[2] HL7 v2.7 supports all HealthCare department data for exchange between different HealthCare systems. It reduces the custom interface programming. But it is not plug and play; and not support transaction processing feature. Table1.Difference between HL7 v2.x and HL7 v3.0 HL7 v2.x Hl7 v3.0 Not based on RIM model Based on RIM model Backward compatible Limited to backward compatible Human readable ASCII syntax XML encoding syntax Not plug and play Plug and play Support hospitals workflows Support health workflows Exchange clinical, administrative and financial data Only exchange clinical data HL7 RIM[3] (Reference Information Model): The HL7 Reference Information Model provides the structural information of HL7 in the form of information classes. HL7 RIM is an object oriented model to make compatible the HL7 specification interoperability to all domains. It is important part of the HL7 v3.0 development model. It increases precision