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HL7 2007 EHR-S Functional Model
HL7 2007 EHR Interoperability Model Draft Standard for Trial Use

February 2007 EHR-S FM and EHR/IM Packages

Welcome to HL7's 2007 Electronic Health Record System Functional Model Normative Standard (ANSI-approved), and the 2007 Electronic Health Record Interoperability Model, Draft Standard for Trial Use.

What are they?
The HL7 EHR System Functional Model provides a reference list of over 160 functions that may be present in an Electronic Health Record System (EHR-S). The function list is described from a user perspective with the intent to enable consistent expression of system functionality. This EHR-S Functional Model, through the creation of Functional Profiles, enables a standardized description and common understanding of functions sought or available in a given setting (e.g. intensive care, cardiology, office practice in one country or primary care in another country).

The HL7 EHR Interoperability Model establishes an industry consensus view of "What is EHR Interoperability?" It provides a reference list of characteristics of (and requirements for) interoperable EHR records. EHR/IM conformance criteria permit EHR records to be validated (vis-ŕ-vis the interoperability characteristics) at points of EHR record origination, transmission and receipt. The EHR/IM may be profiled to meet the specific needs of care settings, regions, implementations and uses.

As part of the work in preparing the HL7 EHR Interoperability Model, extensive research was conducted around the topic of "interoperability" - how is the term currently defined and used in actual practice. This research is reported in the Coming to Term: Scoping Interoperability for Healthcare whitepaper and supporting documents. While these materials are incorporated in the download file for the HL7 EHR Interoperability Model, they are also available in a separate download "package".

What are they not?
Great question. The EHR-S FM is not a list of specifications for messaging, implementation, or conformance. Nor is it a specification for an actual EHR-S. Therefore, the EHR-S FM can be used by industry, healthcare providers, governments, and other organizations as a common language (tool) for discussing EHR-S functions.

The EHR/IM is not an implementable specification. Instead it establishes the characteristics and requirements for interoperable EHR records.

Who created them?
The HL7 EHRS/FM and EHR/IM are the result of a broad public-private partnership and reflect input from hundreds of individuals around the world led by the ANSI-accredited international standards organization, HL7 through its EHR Work Group.

Aren't there too many functions in the EHRS/FM?
No. The functions are a superset of all functions that can be provided by EHR-S' (both now and in the future). Your system should be a subset. Using this approach, your system can expand, adapt, specialize, et cetera, according to your desire. Determining exactly how many (and which) functions to include in the model has been one of the greatest challenges of this effort. Why? Because your functions are important - critical - for those under your care. To accommodate the unique needs of care settings and providers, the profiling process, described below, acknowledges and allows for the possibility that a specialized care setting may require a care-setting specific function not present in the model).

How can one EHR-S be compared with another?
A subset of functions (a “profile”) can describe a particular care setting or a particular use of the functions. Over time, vendors, and providers will create profiles within (country-specific) realms.

Is there a "Profile" illustration?
An example functional profile, the Emergency Department, (a work-in-process draft, not intended for actual use or benchmarking efforts) is offered (for illustration purposes - and as a suggested approach). This example includes definitions, priorities and a conformance clause illustrating the ED care setting, and a subset of functions that comprise the sample profile (prioritized as essential now, essential future, or optional,). Also, as part of the EHR-S FM there is a How To Guide reference document to provide direction on the steps needed to create a profile.

The EHR-S FM has received an unprecedented amount of feedback from hundreds of reviewers from the standards community, the provider community, the international community, and other industry stakeholders. We hope for, and look forward to industry review and input to the EHR/IM DSTU. Continued stakeholder involvement and the development of additional profiles will provide the basis for the ongoing evolution of both the EHR-S FM and the EHR/IM. Thanks for your interest and your help!

Downloadable Files

Each file below is a ZIP file containing a PDF.

EHR-S FM 2007 (5 Meg)

EHR/IM DSTU - 2007 (927 kb)

Coming to Terms: Scoping Interoperability for Healthcare (whitepaper & supporting documents)

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Wednesdays, 12:00 PM ET

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All Dates are Subject to Change

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