**athenahealth HL7 Native Data Structure** and Reference File Download Link
https://eu2.contabostorage.com/00f3241116844f24b628f46d81abb929:st1/folder6/6337/1655947802_adt_specification_and_sample_messages_-_Standar_Format.xlsx
2026-05-30 04:08:04 - Admin
<style> body {font-family: Arial, Helvetica, sans-serif; line-height: 1.6; margin:0; padding:0; background:#fafafa; color:#333;} header {background:#0066cc; color:#fff; padding:20px 10px; text-align:center;} nav {background:#e6f2ff; padding:10px;} nav a {margin:0 10px; color:#0066cc; text-decoration:none; font-weight:bold;} main {max-width:960px; margin:20px auto; background:#fff; padding:20px; box-shadow:0 0 5px rgba(0,0,0,0.1);} h1, h2, h3 {color:#0066cc;} table {width:100%; border-collapse:collapse; margin:20px 0;} th, td {border:1px solid #ddd; padding:8px; text-align:left;} th {background:#f2f2f2;} pre {background:#f9f9f9; padding:10px; overflow:auto; border:1px solid #ddd;} .note {background:#e7f3fe; border-left:4px solid #2196F3; padding:10px; margin:20px 0;} footer {margin-top:40px; text-align:center; color:#777; font-size:0.9em;} </style><header> <h1>Understanding athenahealth HL7 Native Data Structure</h1></header><nav> <a href="#overview">Overview</a> <a href="#segments">Key Segments</a> <a href="#datatypes">Data Types</a> <a href="#mapping">Mapping to athena API</a> <a href="#best-practices">Best Practices</a></nav><main> <section id="overview"> <h2>Overview</h2> <p>athenahealth delivers its clinical and administrative data through the standard HL7 v2.x messaging format. While many integration partners use the <em>FHIR</em> layer that athena offers, a substantial number of legacy systems still rely on the native HL7 messages that are generated directly from the athena EHR.</p> <p>These native messages follow the traditional HL7 segmentfieldcomponent hierarchy, but athena adds a few customizations to support its proprietary workflows. Understanding the structure helps developers build reliable interfaces, troubleshoot message rejections, and create accurate data mappings.</p> </section> <section id="segments"> <h2>Key Segments in athena Native HL7</h2> <p>The most common message types you will encounter are:</p> <ul> <li><strong>ADT^A01 / ADT^A04</strong> Patient admission, registration, and demographic updates.</li> <li><strong>ORU^R01</strong> Observation results, primarily lab and imaging reports.</li> <li><strong>SIU^S12</strong> Scheduling information (appointments, cancellations).</li> <li><strong>DFT^P03</strong> Billing and claim submission data.</li> </ul> <h3>Typical Segment Layout</h3> <pre>MSH|^~\&|athenahealth|ATHENA|LAB|LAB|202405291200||ADT^A01|12345|P|2.5.1EVN|A01|202405291200PID|1||123456^^^ATHENA MRN||Doe^John||19800101|M|||123 Main St^^Anytown^NY^12345||555-1234PV1|1|I|ER^^^01^01||||001^Smith^Jane|||MED|||||123456|A0| </pre> <p>Notice the use of the standard MSH field separators (<code>^~\&</code>) and the inclusion of athenaspecific identifiers (e.g., ATHENA MRN).</p> </section> <section id="datatypes"> <h2>HL7 Data Types Used by athena</h2> <p>athena adheres to the HL7 v2.x data type definitions but makes occasional use of the following extended types:</p> <table> <thead> <tr><th>Data Type</th><th>Description</th><th>Typical Use in athena</th></tr> </thead> <tbody> <tr><td>ST</td><td>String (text)</td><td>Patient names, comments.</td></tr> <tr><td>NM</td><td>Numeric</td><td>Quantities, ages.</td></tr> <tr><td>DT</td><td>Date (YYYYMMDD)</td><td>Birth date, service date.</td></tr> <tr><td>TM</td><td>Time (HHMMSS)</td><td>Visit start/end time.</td></tr> <tr><td>TS</td><td>Timestamp (date+time)</td><td>Message creation time.</td></tr> <tr><td>CE</td><td>Coded Element</td><td>Diagnosis codes, procedure codes.</td></tr> <tr><td>EI</td><td>Entity Identifier</td><td>Internal athena IDs (e.g., appointment ID).</td></tr> <tr><td>XPN</td><td>Extended Person Name</td><td>Full patient name with prefix/suffix.</td></tr> <tr><td>XTN</td><td>Extended Telecommunication Number</td><td>Phone numbers, email.</td></tr> </tbody> </table> <p>When a field is optional in the HL7 standard, athena often populates it with a placeholder (e.g., empty string) rather than omitting the field entirely. This is important when parsing messages programmatically.</p> </section> <section id="mapping"> <h2>Mapping HL7 to athena API Objects</h2> <p>Many customers prefer to move from pure HL7 ingestion to a hybrid model that also uses athenas RESTful API. Below is a quick reference that shows how common HL7 fields map to the JSON structures returned by the API.</p> <table> <thead> <tr><th>HL7 Segment / Field</th><th>API Endpoint</th><th>JSON Property</th></tr> </thead> <tbody> <tr><td>PID-3 (Patient Identifier List)</td><td>/patients/{id}</td><td>patient_id</td></tr> <tr><td>PID-5 (Patient Name)</td><td>/patients/{id}</td><td>first_name / last_name</td></tr> <tr><td>PID-7 (Date of Birth)</td><td>/patients/{id}</td><td>date_of_birth</td></tr> <tr><td>PV1-3 (Assigned Patient Location)</td><td>/encounters/{id}</td><td>department_id</td></tr> <tr><td>OBR-4 (Universal Service ID)</td><td>/labs/{id}</td><td>test_code</td></tr> <tr><td>OBX-5 (Observation Value)</td><td>/labs/{id}</td><td>result.value</td></tr> <tr><td>AL1-3 (Allergy Code)</td><td>/allergies/{id}</td><td>allergy_code</td></tr> </tbody> </table> <p>Because the HL7 message may contain multiple repeating segments (e.g., multiple OBX lines for a single lab order), the mapping logic should aggregate them into an array under the appropriate JSON property.</p> <div class="note"> <strong>Tip:</strong> Use athenas <code>message</code> endpoint to retrieve the raw HL7 payload for a given encounter. This can aid debugging when the API response appears out of sync with the source message. </div> </section> <section id="best-practices"> <h2>Best Practices for Working with athena HL7</h2> <ol> <li><strong>Validate MSH fields first.</strong> Ensure the sending and receiving application IDs match the contract you have with athena. A mismatched <code>Sending Application</code> will cause immediate rejection.</li> <li><strong>Handle optional segments gracefully.</strong> For example, the <code>NK1</code> (NextofKin) segment is often omitted for adult outpatient visits, but the message may still contain placeholder delimiters.</li> <li><strong>Use the <code>Message Control ID</code> (MSH-10) as your deduplication key.</strong> Even if the same patient record is sent multiple times (e.g., after an update), the control ID will be unique for each transmission.</li> <li><strong>Pay attention to the character set.</strong> athena defaults to <code>ISO-8859-1</code>. If you need Unicode, set the <code>MSH-18</code> field to <code>UTF-8</code> and confirm the partner system accepts it.</li> <li><strong>Leverage the <code>QBP^Q22</code> query message.</strong> When you need historic data, athena supports QBP queries that return a batch of ADT or ORU messages based on date ranges.</li> <li><strong>Log full raw messages.</strong> Because many integration issues are caused by hidden control characters, keeping the original message (including carriage returns) is invaluable for support.</li> <li><strong>Test in the athena Sandbox.</strong> The sandbox mirrors production segment rules but allows you to send test MRNs without affecting real patient data.</li> </ol> </section> <section> <h2>Conclusion</h2> <p>athenahealths native HL7 implementation follows the standard v2.x conventions while embedding a few proprietary identifiers that make integration straightforward once they are understood. By familiarizing yourself with the core segments, data types, and the mapping to athenas REST API, you can build robust interfaces that handle patient demographics, appointments, lab results, and billing information reliably.</p> <p>Remember to keep your parsing logic flexible, validate critical header fields, and always test against the sandbox before moving to production. With those safeguards in place, the athena HL7 native data structure becomes a powerful, standardsbased conduit for exchanging health information.</p> </section></main>