Implementation Guide for Immunization Data Transactions Using Version 2.3.1 of the Health Level Seven (HL7) Standard Protocol. Implementation Guide Version 2.1

摘要

This document replaces previous National Immunization Program (NIP) Guidelines for Immunization Data Transactions versions dated June 1999 and earlier. The 1995 and 1997 versions were intended to help familiarize developers of immunization information systems with Health Level Seven (HL7) immunization message definitions and encoding rules. As immunization registries developed HL7 implementations, they discovered that the coding flexibility built into Versions 2.x of HL7 resulted in transactions that were not plug and play among the developers. In other words, before testing could be successful, site-specific negotiations were required to harmonize different variations. Some implementers added Z segments and developed code sets to represent needed data within the rules allowed by HL7, but these were not done consistently. When State-based public health registries approached commercial vendors, the registries were encouraged to develop one nationally consistent implementation. To explore this possibility, a small workgroup of six registries met in September 1998 to review each registry's implementation plan. The group reached consensus on a single implementation that met the needs of all in one common way. The result was the publication of the June 1999 Implementation Guide for Immunization Data Transactions using Version 2.3.1 of the Health Level Seven (HL7) Standard Protocol, Version 2.0. This Version 2.1 (referenced herein as the Guide) incorporates changes to the 1999 Guide that have been made available since January 2002 as errata pages, demonstrates expanded use of the OBX segment in immunization messages, and also demonstrates an HL7 message that can be used to submit Vaccine Adverse Events Reports (VAERS) electronically. Users will note several references to HL7s Version 2.4. In a few places, immunization messages were affected by that version of the standard. For example, NIP had proposed several new fields that were not approved in time to be included in Version 2.3.1. We had placed them in our previous Guide in the fields where HL7s Version 2.4 drafts had indicated they would goPD1-14 and 15. When the final standard was released, however, they were in PD1-13, 16, 17, and 18. By correcting these fields, users will be consistent with others using our Guide as well as all users of HL7s Version 2.4. Similar reasoning was applied to code set changesin particular Table 0063-Relationship and Table 0005-Race. We have not seen any areas of Version 2.5 that will affect immunization registries use of Version 2.3.1.