Electronic Health Information (EHI) Export Format Documentation #

This document provides detailed information about the Electronic Health Information (EHI) export format used by the certified health IT product for single patient export. The export is implemented using the  HL7 Consolidated Clinical Document Architecture (C-CDA) standard, in accordance with the ONC certification criterion §170.315(b)(10).

Product Information #

Product Name: Legend EHR, LLC
Version: 5.3
Export Type: Continuity of Care Document (CCD) – C-CDA R2.1

Export Format Structure and Syntax #

The export format is based on the HL7 Consolidated Clinical Document Architecture (C-CDA) Release 2.1, July 2017. The exported document follows XML syntax and complies with the CDA schema definitions as defined in the HL7 implementation guides.

Each exported file includes the following key sections:

• Patient Demographics
• Author and Custodian Information
• Problems List
• Allergies and Intolerances
• Medications
• Encounters and Diagnoses
• Procedures
• Vital Signs
• Social History
• Results

Example CCD (C-CDA R2.1) Export #

Below is a representative example of a Continuity of Care Document (CCD) generated by the
system. This XML structure follows the HL7 CDA namespace and schema definitions:

<?xml version=”1.0″ encoding=”UTF-8″ standalone=”yes”?>
<ClinicalDocument xmlns=”urn:hl7-org:v3″ xmlns:xsi=”http://www.w3.org/2001/XMLSchema-instance” xsi:schemaLocation=”urn:hl7-org:v3 CDA.xsd”>
<realmCode code=”US”/>
<typeId root=”2.16.840.1.113883.1.3″ extension=”POCD_HD000040″/>
<templateId root=”2.16.840.1.113883.10.20.22.1.2″/>
<id root=”2.25.79597816765834076003231149380744084217″/>
<code code=”34133-9″ codeSystem=”2.16.840.1.113883.6.1″ codeSystemName=”LOINC” displayName=”Summarization of Episode Note”/>
<title>Continuity of Care Document (CCD)</title>
<effectiveTime value=”20251010113135+0000″/>
<confidentialityCode code=”N” codeSystem=”2.16.840.1.113883.5.25″/>
<languageCode code=”en-US”/>
…
</ClinicalDocument>

Validation and Compliance #

The generated CCDA documents have been validated using the official ONC CDA Validator against the ‘Consolidated CDA (C-CDA DSTU Release 2.1) (July 2017)’ standard. All exports conform to the required template and schema constraints.

Public Accessibility #

This document serves as the publicly available documentation describing the export format of the EHI data. It is intended to be linked via a publicly accessible hyperlink on the Certified Health IT Product List (CHPL) without preconditions or login requirements.

Versioning and Maintenance #

The product team maintains this documentation to ensure it reflects the current export format for the single patient export. Any structural or version changes to the export implementation will be reflected in future updates to this documentation.